"Bunting" is a sexual act between two females in which the women lean backwards and ram their lower torsos (pelvic area and thighs) together repeatedly for sexual satisfaction.
Passerby 1: "What's all that grunting coming from the softball dugout?"
Passerby 2: "I'm not sure, but I think it's a bunch of women bunting like rabbits."
The act of a man stuffing his penis into a womans anal cavity while she is in missionary possition but it dosent fit all the way..thus creating the image of "bunting" commononly seen in porno flicks
Seb : "Gus....."
Gus : "What seb? How'd it go with Niki last night?"
Seb : "It lasted about a minute...then I bunted...inside-"
Gus : "WHAT?! POORNIKI!!!"
Seb : "Yea, it's ok though... she doesn't know what bunting is"