Slippery Sally 

When one recieves fellatio from his female partner and right before ejaculation gives the warning, then ejaculates all over her face while grabbing the back of her neck and rubbing it all over her face with the other hand yelling SLIPPERY SALLY SLIPPERY SALLY.

1) While I was recieving fellatio from sally, I came all over her face and yelled SLIPPERY SALLY!
2) I gave your sister a slippery sally, that must be where that skin pigment deficency came from.

Slippery Sally by Sickashell July 16, 2008

Slippery sally 

When you’re fingering a chick and then stick your finger in her ear with the same finger you used to finger her. This is an advanced form of the wet Willy.

I was fingering this chick the other night and gave her a slippery sally when I slid up to start fucking her.

Slippery sally by Mumbs May 8, 2018

Slippery Sally 

When you are fucking a chick and she shits from the pressure...

Slippery Sally by Justin & Tuesday August 2, 2003

Slippery sally 

A “Slippery Sally” is when your at a party and, a woman instead of a man, slips a roofie into your drink.

I pulled a Slippery Sally and put a roofie into this man’s drink.

Slippery sally by I-want-to-die123 March 8, 2022