brainwave

british slang for a sudden, clever idea. similar to the american “brainstorm.” often used sarcastically.
suzie invited the neighbors in to see her most recent brainwave, a water fountain in the middle of her living room.
when a genius idea strikes you in the middle of a huge dilemma, saving time, effort, money, you and friends from sobriety or ticketing/over-ticketing/arrest, etc…

opposite of brain fart, cerebral blockage, bad idea, and so on.
example #1
fred: “i can’t believe this store stops selling beer at 9 pm. what are we going to do?”
you: “brain wave! the one down on jeff davis hwy sells until 11! get in the truck and let’s roll!”
fred: “you are a genius!”

example #2
bob: “my car stopped working, how are we going to get to the show?”
you (again!): brain wave! my neighbor always leaves the keys in his ignition. let’s roll!”
bob: “you are a genius!”
an idea that sparks up once in a while.
it’s fun when you get a brainwave,especially if you get to use it.
a brain wave is a stupid thought that some kind of idiot gets after a sleepless night. this brain wave can become a brain tsunami when this idiot is some kind of boss.
a brain farth is also some kind of idea.
good examples of brain waves can be found in politic environments, for instance: “what about attacking iran with nuclear bombs ?”
when you are receiving oral pleasure (f-ll-t–) and when you are about to blow your wad, you c-m in her nose which feels like when you dive in a pool incorrectly and all that water gets into your sinuses and hurts, thus the name brainwave.
dude, i was getting blown by jessica and i just felt like giving her a brainwave, she p-ssed out, then i gave her another one.