Short for "simulation". An adjective to mean fake, i.e. "simulated".
Did you see Jack after his cosmetic surgery? It's made him look simmy af!
Did you see Sarah's new ass? It's not in proportion with the rest of her body, and now she looks simmy af.
A person addicted to playing, or anything involving, the sims.
Sister: “You’ve been playing that game for 10 hours straight, go eat something.”
Simmer: “No need food, need sims!”
Sister: smh. “You’re such a simmy”
To stab someone around the stomach area with a pencil.
*Random kid being annoying*
Friend: You better knock it off before I simmy you.
Forget your ID home and make love together.
My friends went to Beurs but P forgot her ID. S was a gentleman, and both were holding hands together while waiting for their friends. #Simmy