A exclamation either when the exclamator destroys something or does something wicked awesome.It is usually screamed when something is set on fire or exploded. it is also screamed when somebody does a stunt or a backflip or......something cool......like that.
(throws a 20 pack of fire crackers into a bon fire. this results in large noises and lotsa, lotsa explosions)Random Dude: Boomshackalacka
1. To burn; putting someone in check 2. When angry and swearing at someone
3. A sexual comment; to want to get frisky with someone
1.
Eric: "Hey baby, can I get your number?"
Ashley: "Ummmm no! Didn't you go out with my friend last night?"
Nick: "Ohhh Eric! You just got boomsmacked!"
2.
"I am sooo mad right now! I wanna boomsmack him!"