(Boy) "I don't wanna throw up. It tastes bad."
(Doctor) "Hmm ... Imagine that guy on TV, Cojo, is sitting here, and he's about to ... TOUCH YOU!!"
(Boy) "Ack!!! Nasty!!" (barfs)
possibly for fear of std's or knuckle children.
Bro 2: No man, she took me to her room and gave me the old cojo.
But cojo basically means cool or awesome.
Bob: Def, cojo.
Lily: Cojo indeed.