(Episode begins with Mordecai, Rigby and Skips reshingling the roof. Rigby taps his hammer a few times.)
Rigby: ♪Yo, it's your birthday, I got you a present! Yo, it's your birthday, I give the best presents!♪
'Mordecai': Dude, how many times do I have to tell you? You can't rhyme "present" with "presents".
Skips: Yeah, that's just careless rapping.
(Mordecai and Skips fist bump.)
Rigby: Psh. Whatever, man. Your birthday present is so great. You don't even know!