Hysterical.
The Big Bang Theory Season 4, Episode 20
He does this HYSTERICAL impersonation
of Stephen Hawking having phone sex.
The Big Bang Theory Season 2, Episode 11
I also have a HYSTERICAL bit
planned for later
The Big Bang Theory Season 5, Episode 24
Yeah, it's HYSTERICAL.
The Big Bang Theory Season 4, Episode 22
I think I'm HYSTERICAL.
The Big Bang Theory Season 7, Episode 12