Top definition
The act getting everyone at a party to cum inside of a ballon,
"Everyone come over here and cum into this balloon for the birthday boy" said jim.
"I love when someone does a birthday balloon surprise over my head"

"Pop"went the balloon.

"Oh wow thanks love you guys" yelled the birthday boy
by Fist me dad but pleazd dont cu December 11, 2016
Get the mug
Get a birthday balloon surprise mug for your dog G√ľnter.