I am terrified of stepping on a nail
and falling into a BUTT crack.
The Big Bang Theory Season 10, Episode 7
...his BUTT.
The Big Bang Theory Season 11, Episode 13
Butt print.
There's no discernible BUTT print.
The Big Bang Theory Season 2, Episode 16
Or up the BUTT?
The Big Bang Theory Season 5, Episode 12
"If you want a warm BUTT,
pay for it yourself."
The Big Bang Theory Season 6, Episode 20