the act of suddenly and swiftly pulling ones pants and undies down, licking their genitals then pulling them back up. it is primarily done by someone to their partner in a semi-public (or public) place as a lewd act.
"I walked in on a gay guy giving a licksee to his boyfriend in the men's bathroom so i'll just pee somewhere else. they didn't see me but i sure as hell saw them."
The defamed grass/poison type pokémon that has a strikingly similar name to a hilarious and funny!
It is often brought up while clicking through the pokédex while doing your pokémon smash or pass or an enraged gut reaction to being called sussy.
Person: "Pass... Pass..."
Person: "Heh, this amoonguss is quite suspicious LMAO RIGHT? ... smash."
Separate Person 1: "This dude keeps calling me gay! What is he? Five years old?"
Separate Person 2: "I think he's trying to say you're quite sussy."
Separate Person 1: "HEHEHAHA YEAH LOLOL SUS AMOONGUSS AHHHH YOU'RE SO FUNNY-" *Disconnects from call, leaves server*