When a man shoves a woman's face in the toilet while engaging in anal sexfrom behind. He then proceeds to flush the toilet as he drops a load in her asscrack.
Noun.
1. And individual who metaphorically and / or literally butters someone's asshole.
2. A suck up who's fakeness and agenda is masked by her incessant need to make people think she is sweet and innocent.
Even though Cassidy made Ginger cry, everyone still likes her because she is a butterhole that complimentseveryone.
Ass bitch annoying fake butterhole liar asshole
When you cover your sexual partner in butter and then blow into their anus like a French horn while they emit a high-pitch mating call similar to a squirrel to signal arousal in the nearby animals.
I was at a furry convention and gave this chick the ol' butterhorn squirrel and next I knew they were swarming my windows and doors looking for a piece of the action.