spunky bum
An endearing term used for a girl with a butt so attractive you could jizz all over it...
'Hey spunky bum, you're Iookin hot tonight'...
Spunky bum trumpet
To fart bubbles of semen after an act of anal love-making.
My boyfriend blasted me with such a huge load last night I’m still playing the spunky bum trumpet.