He had a panic attack once
when he got his head stuck in his SWEATER.
The Big Bang Theory Season 3, Episode 10
"New SWEATER vest?" And possibly,
though less likely, "Nice SWEATER vest."
The Big Bang Theory Season 3, Episode 5
That's true. But, on the other hand,
you are wearing a bird SWEATER.
The Big Bang Theory Season 2, Episode 10
Well, it's a fun SWEATER.
It's got a bold geometric print.
The Big Bang Theory Season 1, Episode 16
"Bring a SWEATER,
it's slow outside."
The Big Bang Theory Season 5, Episode 13