In different American towns, a pancake might be a batter cake, a flitter, a slapjack or a hot cake. A run-down car could be a lemon, a clunk, a hoppy or a junker. Editors of the Dictionary of American Regional English spent 50 years cataloging all the darnedest things Americans say, and now they’re doling out tidbits of the celebrated six-volume reference on Twitter. —Katy Steinmetz