빼박 /ppae-bak/
Undeniable / Can't deny it
Short for 빼도 박도 못한다 (can't pull it out, can't push it in). Used when something is absolutely certain or undeniable — caught red-handed.
Examples
빼박 네 거잖아
That's undeniably yours, can't deny it
빼박 증거 있어
There's undeniable evidence