What is Stoner Logic?
1.
Whenever someone makes a completely stupid comment but thinks that their comment makes alot of sense
Pam: I was walking my dog when a deer ran into me, I thought it would move out of the way and not hit me
Phil: Let's blow up this can of WD-40 and set it on fire
That's fucking Stoner Logic for ya.
See
2.
The roundabout way you have to convince certain stoners of things. Common tactics include using their delusions against them, inductive leaps, and citing universally held stoner beliefs.
Stoner: Woooo! I am mighty!
Neighbor: Dude thinks he can fly. Don't argue, or he'll jump to prove it.
Friend: What am I supposed to say?
Neighbor: Dunno. Use stoner logic.
Friend: Hey Lawrence! Where's your cape and mask, man?
Stoner: Oh shit! Um...
Friend: Lawrence, get your ass back in the house before everyone knows your secret identity!
Stoner: Shhh! I'm goin'! Quite sayin' my name!
Neighbor: Well played.