Inner Thigh Band-Aid
Putting a Band-Aid on your inner thigh symbolizes that you have/are going to take a fat shit.
Guy 1: Hey, did you see that girl walking out of the bathroom?
Guy 2: Yeah, she had the inner thigh band-aid, that shit must've been massive.
Guy 2: Yeah, she had the inner thigh band-aid, that shit must've been massive.