Groundskeeper Willie

Principal Skinner: Willie, go into the vent and get him.

Groundskeeper Willie: What!? Have ye gone waxy in yer beester? I canna fit in the wee vent, ye croquet-playin' mint-muncher!

Principal Skinner: Grease yourself up and go in, you guff-speaking work-slacker.

Groundskeeper Willie: Ooh. Good comeback.