Tophat is cockney rhyming slang for "Twat" or from the scientific point of view, the female genitalia.
"Twat" is very common British slang therefore all yanks should permanently carve the meaning into their heads when visiting the UK.
OMFGZZZ what are you doing you complete and utter tophat!!!
A badass hat that all the cool motherfuckas wear.
FRED: Look at that sick motherfucka. Hes wearing a Top Hat
DERF: Man. I wish I had that hat.
verb. a literal or figurative covering up of something bad or shameful as if nothing ever happened. To conceal something in hopes that it will go away on its own. To hide from public view and scrutiny.
The BP Oil and Haliburton executives have decided to Top Hat the 200,000 gallon per day oil leak in the Gulf of Mexico.
an uncircumcised penis. Looking at the penis head on (no pun intended) it looks like a penis with a tophat on.
google penis: uncircumcised penis and stare - tophat
Jonny/Condom/Rubber Sock/Sperm Sanctuary/Baby Barrier/Love Butter Eradicator
Easy Now dan you got a Top Hat
for me or otherwise il have to get one of dem pills for me bitch to get dat bun out of er oven!
Father To Son: Ohh son how I wish i had used a Top Hat
so you didn't bicker with you're older sister!
Euphemism for condom.
Jenny was very shy so she asked the health department nurse for a supply of top hats.
When one places his scrotum on the top of someone's head, while they are passed out or in a deep sleep.
Nick totally top hatted that boy from st. johns last night.