when you are kissing on a girl and take her hand and put it on your meat to gauge her reaction. if she starts rubbing its time to take your pants off. if she's like ewww you gotta pull some stank shit like "woah what are you doing. your nasty."
man 1: man i couldn't stand jodi's man face kissing on me last night so i meat checked her and got some brains
man 2: ewww i wouldn't hit that with a 10 ft pole