If they were called womanholes, guys would keep trying to get in.
They tried that but people kept on thinking it was the checkout line at Home Depot.
Nein! Mein Stein!....sorry
A singer
Not too well considering they can't finish a race.
Between the covers. I will now show myself to the door.
Because manholes are round
Because Rouleaux triangles are too hard to manufacture. What do you call 8 hobbits? A hobbyte.
