The family's well worn sofa has seen better days on The Simpsons. "Pulpit Friction" is the 18th episode of the show's 24th season.

The Simpsons Season 24 Episode 18 Quotes

Homer: Boy, why are your friends so dirty?
Bart: Dunno. Why are your friends such drunks?
Homer: Touche.

Hehehe, the brain is so stupid.