Or winning a hand at BlackJack "Boom!"
Nothing to do with terrorists and explosions going off. Just expressing yourself in a way other than an emoticon.
This was first seen on FaceBook by entrepreneur 'Mark Hastings', captioning every picture post with the word "Boom!". As we furthermore saw the trend move on to LMFAO in a few of their songs.
Just quit my job... Boom.
Brah 2: Yeah brah, but we need to get some more Beast first.
Brah 3: Alright, let's head to the Deli.
2. When someone does something good, great or amazing.
3. When someone says something good, great or amazing.
Boy smashes a window - "Yeah dats boom"
"Let's go down the park and get some cider" "Yeah boom"