Plane Brain 

Recieving oral sex on a flighted plane.

Tyrone: I'm not lookin foward to the flight to Boston.

Darnell: Well get yo woman to give you some plane brain!

Plane Brain by Mario Gannarelli March 13, 2010

Brain Plan 

When you make a mental plan to do something at some point in the future.

I've made a brain plan to go take food out of the Marks and Spencers bins later at around 1am.

Brain Plan by phospheris March 14, 2009

Brain Plant 

A close range shot to the head with a sniper rifle without using a scope. A term used in online FPS gaming.

I was playin killzone online last night and totally brain planted this n00b.

Brain Plant by theoriginalblizzard January 11, 2007

plankbrain 

The act of someone's brain malfunctioning that leads to a poor outcome.

Wow, you haven't died in several hours, did you plankbrain?

plankbrain by NOT GIVE UP April 11, 2020