To screw in the lightbulb.
A BokBok...
HEY! DO YOU WANT TO BUY A CHICKEN!?!?!
Hippies don't screw in lightbulbs they screw in dirty sleeping bags.
None *et al.*
Hehe... 'screw' Alternatively: 69, but everyone expects that one.
It depends on the definition of lightbulb.
They walk on the sins of their ancestors.
One, but you can be sure a whole Reddit community will appear to expand the joke, make it funnier and eventually run it into the ground.
For the boos.
It was happy hour.