A term used by Rodeoclowns to identify oversized vibrators used to arrouse bulls before cowboys ride them. occasionally used to denote somebodys obvious homosexuality or ambiguity toward animals.
1. Hey, that bull over their looks pretty lame today. Might wanna try sticking a Domaroniakus up its bum.
2. That Man-child over their must be a Domaroniakus because he sex's Donkeys.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.