1. noun, The wing or foil at the rear
of a car providing downforce, often made
with form rather than
function in mind, to adorn the rear
of the cars driven
around your town centre by mouth-breathers
they're in The Fast & the Furious
2. noun, A piece of information likely to ruin dramatic
tension in any piece of entertainment
if discovered too early. Usually any plot development revealed more than a third
of the way through
the story. She's a man, he's a ghost, it's his sledge, he's a clone, etc.
3. verb, To ruin any piece of entertainment
by revealing such information.
4. verb, To protect
others from entertainment
being ruined by obscuring such information from them.