It is unnecessary to say licence after a wrangler strangler because it is understood that the 'strangler' cannot be strangled.
The phrase was coined by a small group of Bronx teens in the early 2010s.
*Please don't seriously strangle your friends, that's rude*
Toni: Wrangler strangler!
Stephanie: Wrangler strangler!
"Damn, he is a wrangler starngler!"