This is the transcript for the short, OOOHH!!!.
Mordecai: We only get one shot at this, so let's make it count. You ready to make history?
Rigby: (holding two basketballs) Hmm! (he throws a basketball at the cart's accelerator) Ha!
(the cart starts driving towards a tree)
(Rigby runs towards Mordecai, who has a catapult, Rigby puts another basketball in the catapult, and they both pull it backwards)
Mordecai: Hold it! Now!
(they both let go and the ball is thrown over to the cart, which has just crashed and has a basketball on it)
M&R: OOOOOHHHHHH! (they say this as they spin around through the field, living room, which Skips is in, out of the park, passing Mount Rushmore, getting on a plane, inside the plane, through a hill in Ireland, passing the Eiffel Tower in France, the Brandenburg Gate in Germany, through a sumo fight in Japan, a lake in Brazil, a field in Papua New Guinea, through Sydney in Australia, a temple in South Korea, the Great Wall of China)
(the screen cuts to Mordecai and Rigby's funeral, four people are there and mourning them)
Funeral Director: We are here to mourn the passing of Mordecai and Rigby, who said "Oh!" until they died of exhaustion. No one knows why they said it for so long, some say it was because they were just really cool, others say it was because they sank the sickest basketball shot in history. We may never know, all we know is that they're definitely dead. In conclusion-
(Mordecai and Rigby open up their coffins and start shouting "OOHH!" again as everybody gasps)
M&R: OOOHHH! (they say this as they spin inside a cable car in Switzerland, passing a beaver in Canada, passing some penguins in Antartica before returning to the park again) Huh! (they hi-five and laugh, then Benson comes along)
Benson: Hey you two, have you seen the cart anywhere? It's been missing since this morning.
M&R: Uhh, no.