Maybe he was too BUSY
writing clumsy penis metaphors
The Big Bang Theory Season 5, Episode 1
If you're BUSY, I can come back.
The Big Bang Theory Season 6, Episode 4
Actually, I'm BUSY.
Doing what?
The Big Bang Theory Season 7, Episode 7
Oh. Uh, I've been BUSY.
Well, clear your social calendar.
Breaking Bad Season 2, Episode 9
Excuse me, Dr. Gablehauser,
are you BUSY?
The Big Bang Theory Season 1, Episode 4