Guatemalan Pressure-Washer
A form of rimjob in which one partner gets a mouth full of water and streams it into the anus of the other. He or she then proceeds to lick the area dry until they deem adequate. The same motions can be completed with: guacamole, mayo, honey, ketchup, mustard, etc. Dealer's choice
Oh my god, I heard Justin Bieber, loves giving and receiving Guatemalan Pressure-Washers.