Boing Boing means large breasts, with the term 'boing boing' referring to how large breasts bounce .

The term was popularized by Vtubers from Hololive.

See 'rushia is not pettan': youtube.com/watch?v=ahQr-bIhJoU
See `Pekora is Boing Boing`: youtube.com/watch?v=N0Aub5GcGyg
"I am not flat! I am boing boing!"

"I heard she's unhappy with not having them boing boings."
by NotXA October 9, 2020
Get the Boing Boing mug.
'fool' in the language of Spanish
(9th grade broken Spanish)Aye Caramba, porque es tu muy mucho loco bobo!?
For Crying out loud, why are you very much a crazy fool!?
by David July 2, 2005
Get the bo-bo mug.
an idiot. Someone with severely diminished mental capacities.
He's a real bo- bo. I don't know how he got hired.
by slipsheet November 3, 2004
Get the bo-bo mug.
A term referring to a group of man children around 21 yrs of age. This group is often characterized with debilitating immaturity fueled by excessive alcohol consumption. A circle of child hood friends that has evolved into an impressive example of co-dependency. These hotties are forever the life of the party and you can be assured you will always wake up with a hangover and some stories for the road. But, ladies beware...
"Check out that group of guys across the bar they are definitely the bos..."
by Taura and Laffiny July 6, 2009
Get the The Bos mug.
generic shoes, probably bought at Kmart
"Bo Bos, they make your feet feel fine.... Bo Bos, they cost a dollar ninety nine"
by Matt Vaughan October 21, 2006
Get the bo bo mug.
To have an erection.
He boinged at the sight of the girl on girl action that was 89.com.
by Turtle October 23, 2003
Get the boing mug.
A rash you get between your legs near your balls after going swimming at the beach
I have been at the beach all day, My boing boing is killing me.
by Spinksy November 4, 2007
Get the boing boing mug.