when you run to a person, expose your penis, and shove it into their face while yelling, "Trump me! Trump me!" consensually.
I'm sick of all these dudes trumping one another.
I thought I was hot stuff, and then she trumped me.
He kept trumping me all night, thinking I'd suck his magnificent dick.
besting someone with that you had a trump card. "you activated my trap card," if the trap card was so valuable in play there that it changed the course of the game THERE, it was a trump card.
card, can refer to what you've used to act further into play