look up any word, like fluffer:
 
1.
Music played in old porno films right after the first penetration or little bit before a blow job by the bass guitar and also used to describe someone that is very hot.
bitch you look Boom Chicka wah wah !!!! tonight
by Edgar Banuelos November 16, 2007
 
2.
A phrase from the Lynx advert
Usually used by girls to describe a guy's hotness
or by men to describe a girl's hotness.
sometimes accompanied with a dance
Girl: Woah! Look at that fitty! BOOM-CHICKA-WAH-WAH!!
*sways hips*

Guy: hmmmm... oo-er!
by sazzles May 26, 2007
 
3.
A sexual practice, one partner takes a shit on the others stomach (Boom) the male partner then slaps the penis in the shit (Chicka) before proceeding to rub the penis under their partners nose (Wah Wah)
I had to shower after my ex-boyfriend decided to Boom Chicka Wah Wah
by Kim Mitten March 24, 2007