No. You just SUCK at teaching.
The Big Bang Theory Season 3, Episode 10
You SUCK, Wolowitz.
The Big Bang Theory Season 8, Episode 3
You SUCK so hard.
The Big Bang Theory Season 7, Episode 3
It's even better luck to SUCK a dwarf's cock.
Game of Thrones Season 5, Episode 3
Pantsuits SUCK.
The Big Bang Theory Season 4, Episode 21