Top definition
A combination of “that’s a bet” and “word.” Its meaning is basically “sounds good” or “you’re right.” It was originally spoken as “that’s a word” but overtime it devolved to “dassa word,” which is now considered the correct pronunciation and spelling.
Yo are you going to Delaney’s?”
“Nah prolly just gonna chill at the crib with some bouls. It’ll be better vibes.”

“Dassa word.”
via giphy
by Ry Fish March 08, 2018
Happy St. Patties Day!