--- description: Jimmy Fallon and Jason Segel played Word Sneak on The Tonight Show Wednesday night title: Watch Jason Segel and Jimmy Fallon Teach a Master Class on Ridiculous Conversations image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production --- * [Newsfeed](/tag/time-section-newsfeed/) ## Newsfeed Update your preferences in [Account Settings](/account/preferences/) Close # Watch Jason Segel and Jimmy Fallon Teach a Master Class on Ridiculous Conversations  by [Olivia B. Waxman](/author/olivia-b-waxman/)  ## Olivia B. Waxman Update your preferences in [Account Settings](/account/preferences/) Close Staff Writer Jul 30, 2015 2:42 PM CUT  by [Olivia B. Waxman](/author/olivia-b-waxman/)  ## Olivia B. Waxman Update your preferences in [Account Settings](/account/preferences/) Close Staff Writer Jul 30, 2015 2:42 PM CUT On _The Tonight Show Starring Jimmy Fallon_ Wednesday night, actor Jason Segel joined Fallon for a game of “Word Sneak,” in which the two are challenged to insert random words into a normal conversation. When Segel is tasked with using the word “Mongoose,” he says he wants to head down South to check out “mongeese,” while Fallon talks about doing a “squat thrust” in Norway to communicate with the locals. The actor appeared on the late-night show to promote his starring role as David Foster Wallace in _The End of the Tour,_ out in theaters July 31. Jimmy Fallon, Jason Segel Play Word Sneak on The Tonight Show ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/3978428/jason-segel-jimmy-fallon-tonight-show/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/3978428/jason-segel-jimmy-fallon-tonight-show/"},"headline":"Watch Jason Segel and Jimmy Fallon Teach a Master Class on Ridiculous Conversations","datePublished":"2015-07-30T14:42:21.000Z","dateModified":"2026-04-13T07:22:48.609Z","description":"It's all part of a game called Word Sneak","url":"https://time.com/3978428/jason-segel-jimmy-fallon-tonight-show/","keywords":["Newsfeed","Television"],"thumbnailUrl":"","author":[{"@type":"Person","name":"Olivia B. Waxman","jobTitle":"Staff Writer","url":"https://time.com/author/olivia-b-waxman/"}],"articleSection":"","image":[],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/tag/time-section-newsfeed/","name":"Newsfeed"}},{"@type":"ListItem","position":2,"item":{"@id":"https://time.com/3978428/jason-segel-jimmy-fallon-tonight-show/","name":"Watch Jason Segel and Jimmy Fallon Teach a Master Class on Ridiculous Conversations"}}]},{"@context":"https://schema.org","@type":"VideoObject","name":"Late-Night Highlight: Michelle Obama Does 'Ew!' With Jimmy Fallon","description":"The First Lady joined Jimmy Fallon and Will Ferrell for some 'Ew!' talk, and she even brought chips. Well, kale chips.","thumbnailUrl":"https://cdn.jwplayer.com/v2/media/6b08MrLm/poster.jpg?width=720","uploadDate":"2014-02-21T12:53:05.000Z","contentUrl":"https://cdn.jwplayer.com/manifests/6b08MrLm.m3u8","embedUrl":"https://time.com/3978428/jason-segel-jimmy-fallon-tonight-show/","duration":"PT54S","potentialAction":{"@type":"SeekToAction","target":"https://time.com/3978428/jason-segel-jimmy-fallon-tonight-show/?jw_start={seek_to_second_number}","startOffset-input":"required name=seek_to_second_number"}}] ```