Song-sing 

(verb). Song-sing: (a) To be at the pinnacle of one's career.
(b) To achieve excellence in a field or fields of pursuit.

She just won a nobel prize in economics - she's really song-singing right now.

Song-sing by Mankiw November 3, 2010

Sing-song time! 

A phrase uttered by Slim Chin (played by Ken Jeong in a 2010 adidas commercial) after a day of hoops with Dwight Howard followed by a piano-side duet. Can also be used in reference to any musical and/or sensual act.

“You get his shoe, you get fast too. Then it’s sing-song time!”

“Hey girl, it’s getting late, feels like sing-song time to me.”

Sing-song time! by adidasBasketball November 24, 2010

Sing-song squirt 

When you masturbate to someone serenading you.

When Robert played that song he wrote for me, he made me Sing-song squirt

Sing-song squirt by Clout Daddy November 6, 2017

Ping-Pong Sing-Song 

The action of someone putting their entire head in someone else’s ass.

Yah bro it was crazy, I have her the ping-pong sing-song

Ping-Pong Sing-Song by Ya boi og 420 October 14, 2018

Sing Song 

The best night ever at Tripp Lake camp. If it is your first time, you will be concerned as it is very culty and the singsong leaders look like oompa loompas. I live for sing song.

We have to go to the showers, its sing song day! The lines are going to be soooo long!

Sing Song by TLClover123 January 23, 2023

All the Cowgirls sing your song 

An expression to say to your friend in praise of something great they did. It refers to the league of cowgirls who sing the Ballad of Joshyberri and coordinate dances to it.

Person 1: "Hey I completed my SAT's!"
Person 2: "Congratulations! All the Cowgirls sing your song!"

All the Cowgirls sing your song by CaptainFlapjacks December 29, 2022

Dong a long sing a song 

When the male takes a whip while letting the female suck his dick, to add on vibration the girl starts singing so her mouth and tongue vibrates around the whole dick seemingly creating a vacuum of unholy vibrating pleasure, if the female stops singing the whip is used as a second method to make the female scream to which vibrates the throat which the males dick should be in.

Guy:"hey girl wanna do a dong a long sing a song?"

Girl:"sure baby im gonna fill u up with some justin beiber"

Guy:"you better not stop or i will whip you"

Girl:"mmmm kinky"

Dong a long sing a song by Jon bon the gon gon December 29, 2019