A catch phrase that came from the Yu-Gi-Oh Trading Card game, and is usually said when someone is about to get owned, with complete confidence.
*man 1 gets enraged with fury*
Man 2: Ha, you couldn't beat me even if you tried!
Man 1: You just activated my trap card.
Man 2: Ha, you couldn't beat me even if you tried!
Man 1: You just activated my trap card.
by seanbond5 March 2, 2012
Teacher: Can you answer this question tom
You : Sleeping*
Teacher: Wake up!!
You: Idk I choose to Activate my trap card
Your friend: *RISES FROM CHAIR*
He's been up all night studying
You : Sleeping*
Teacher: Wake up!!
You: Idk I choose to Activate my trap card
Your friend: *RISES FROM CHAIR*
He's been up all night studying
by The Mmmm effect July 26, 2014