Time Travel Slang

Certain slang phrases help you date each era. For example, what could be more 60's than "far out man"?

Also, "That's one swell dame." screams 50's. A time traveller who bounces around a lot might do a mix. As in "Hiya dawg." a mix of 1920's "Hiya mac, howya doin?" mix on 1990's "Yo dog, wazzup?" it sounds so comic. Mixing different centuries is less common.