(N.) A cheesy Exclamation used at Basketball Games by idiots to make people feel like they have really accomplished something.
"Three-Pointer! Boom Shacka Lacka!"
by G-Union 2 November 10, 2004
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Vocally mimicking the "shot" (BOOM) and "reload" (SHAKA LACKA) sound of a shotgun.
"Mick raised the shotgun and pointed in Charlies face and BOOM, SHAKA LACKA Chuck was all over, literally."
by Augustjaz711 October 29, 2008
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A term used to show great excitement or exclamation. Preferably one when you have just jizzed heavily.
PERSON: I JUST FUCKING WON THE LOTTERY! CHICKA LACKA POOKA!!!!

PERSON: WTF ARE THESE STRAWBERRIES DOING ON MY NIPPLES!!! CHICKA LACKA POOKA!!!!

PERSON: WUMBO!! CHICKA LACKA POOKA!!!!!!

PERSON: PRACTICE MY ASSHOLE!! CHICKA LACKA POOKA!!!!!!!!!
by stupidickybananas February 11, 2011
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It's when you anal a girl and then she gives you a blow job.
Turc: Hey dude, my girlfriend's breath smells like shit!
Schu: Why?
Turc: Because I boom shacka lacka'ed her last night.
by BORAT SAGDIYEV March 29, 2009
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