If Carl's ass had a name, it'd be named Jack. The JACk for his car is a pain in the ASS to use. He of course likes JACK cheese (which smells like ass), has many JACKets, and never uses wifi-he likes his internet via a JACK. When Carl grows up, he wants to be an ASStronaut, own a JACKal, JACKknife semi-trucks for a living, and open up a restaurant called International House of JACKASS.
Finally, if Carl were an ice cream, he'd be vanilla ice cream with hard gummy bears and swirling bits of JACKASS.