
Leonard, what if you have
an ALLERGIC reaction...
The Big Bang Theory Season 8, Episode 9

Howard's ALLERGIC to peanuts.
How can I use that against him?
The Big Bang Theory Season 8, Episode 2

My friend
is having ALLERGIC reaction to peanuts.
The Big Bang Theory Season 1, Episode 16

...he's ALLERGIC to Earth nuts,
but I'm the alien.
The Big Bang Theory Season 8, Episode 21

No, I'm just ALLERGIC to people
The Big Bang Theory Season 5, Episode 6