The Brief: KWIM stands for "Know what I mean?"

DEEP DIVE
KWIM is short-hand for”Know what I mean?” It is used at the end of a sentence, usually as a casual closing statement or to underscore the relatability of the preceding sentiment.
We both agreed that the sandwich wasn't good, but it was also amazing. KWIM? pic.twitter.com/H2x8E8hyGb
— AmyOztan (@AmyOztan) January 29, 2019