Happy Birthday

1. A song sung on someone's birthday.
2. The act of hitting someone with a container full of very hot tap water while they are sleeping or passed out; singing the happy birthday song.

My cousin was passed out on the couch so we filled up the dish basin with hot water and gave him a happy birthday, it was so funny!

by I'm Built for Speed! April 15, 2006

birthday challenge

The succesful completion of masturbating to orgasm in the 24 hour period on one's birthday an equal amount of times to the age they will turn. i.e. 24th birthday would be required to masturbate 24 times.

Man, Erik gave up porn for good after his castration accident during the birthday challenge.

by thesarlac July 29, 2007

birthday dome

the act of giving head to someone on their birthday, like a birthday present =

rob asked me if i would give him some birthday dome after his party.

by rhiannon_rae March 5, 2008

Birthday Spackle

A guys cum after birthday sex.

My birthday spackle knocked her up.

by frenchmaiden87 July 10, 2010

birthday cock

The act of sticking one's penis in a significant others' birthday cake and using the tip of the penis as a serving knife

Kathy's mom was shocked to see Kathy's boyfriend using his birthday cock to cut the imported tiramisu

by billclintonsblowjobs March 1, 2015

Birthday Girl

A girl who is celebrating her birthday. She is given special treatment for looking sexy af and partying hard.

Guy 1. Ally is looking super cute!
Guy 2. Ya man, she is the Birthday Girl.

by Xxfuturexx September 4, 2018

Three Quarter birthday

A party held for someone nine months to the day after there birthday because it has been three quarters of a year since there birthday.

He was born on June 12th so his three quarter birthday will be on March 12th.

Its his three Quarter birthday.

by judge dredd7 October 12, 2012