"If you want a warm BUTT,
pay for it yourself."
The Big Bang Theory Season 6, Episode 20
"Heigh-ho, I'm on Howard's BUTT."
The Big Bang Theory Season 3, Episode 3
who lived in my BUTT.
The Big Bang Theory Season 5, Episode 18
16 minutes after
brief side BUTT
The Big Bang Theory Season 7, Episode 17
If his BUTT is so delicate
why doesn't he just use an angora rabbit?
The Big Bang Theory Season 8, Episode 4