Dog and Pony show = sex act made famous in Tijuana

Sucks = fellatio

Blowing smoke = blowing smoke up his ass

In cherry condition = ref to virgin

Brownie Points = licking someone’s ass to get on their good side

Brown Noser = licking someone’s ass to get on their good side

Snafu = situation normal, all fucked up
 
Fubar = fucked up beyond all recognition

Screw (as in, screw you, all screwed up, I'm screwed, etc) = fuck

Jerk = shortened from Jerk-off, masterbate