When you are about to finish in a girl's mouth when she doesn't want you to, so she closes her mouth. Then you proceed to blow your load all over her closed lips like a dentist who's trying to get in someones mouth to clean but just gets pissed off.
Guy 1: "How'd it go last night?"
Guy 2: "It was hilarious. My girl wouldn't open her mouth when I wanted to finish. I couldn't wait any longer so I gave her the impatient dentist."
by Mr. 35 July 19, 2010
Get the Impatient Dentist mug.
The excuse for escaping an awkward social moment, boring party, bad day at work, or any other situation you'd rather not be a part of. The intent is to express disdain for the situation - saying you have a dentist appointment when you clearly don't (because it's nighttime, or the weekend, or whatever) amplifies the effect and sarcasm. Synonymous with "this sucks, and I'm leaving".

Used in speech, the dentist appointment can either be how you explain your departure from your current environment, or what you say to someone while giving a recap of the situation and why you left.
Jill: "Hey Matt! Leaving already?"
Matt: "Yeah. Dentist appointment."
Jill: "...but it's 8 p.m. on a Sunday."

"I was trying to watch the movie, but then Sue and Mike started making out, so I had a dentist appointment."
by CapheineJuan June 5, 2007
Get the dentist appointment mug.
A person (gender doesn't matter) who goes to the dentist for the most stupid/most silly reasons; someone who will go to a dentist to whiten their bi-yearly; their teeth are so bleached out/white that you can tell they are fake.
Kelly: Stephania, why are your mom's teeth so..white?
Stephania: 'Cuz she's a total dentist whore! She goes to the dentist every 3 months to get them bleached
Kelly: Well, I heard bleaching your teeth that often isn't too good.
Stephania: Well I'll tell her to lighten up and go annually/
by melixxabirch March 29, 2006
Get the dentist whore mug.
a sadistic parasite; a malevolent and disreputable person
He befriended a backstreet dentist, who lifted all his stash, fornicated with his girlfriend, and then telephoned him collect to bum a ride from her house.
by Kyle of Kent October 3, 2006
Get the backstreet dentist mug.
Casual slang for two-thirty in the afternoon, as in Tooth-Hurty.
Can be used to arrange meet-ups at two-thirty in the presence of others who you do not want to attend. However, it only caters for a very small region of time.
Bob: Alright, see you at chinese dentist.
Phil: Nice one.
Alex: What? Where's the chinese dentist?
by lbr11 October 3, 2011
Get the Chinese Dentist mug.
The pants-dwelling male professional that wants to inspect the inside of your mouth.
"My purple dentist gave her/him a clean bill of health!"
by Gozdan July 17, 2018
Get the Purple Dentist mug.
A mythical person who is said to exist in remote areas of China, but has never been sighted by a reputable source. If existent, he would fix teeth and make them look better. The evidence just simply isn't there to announce he's real.
Mr. Li was excited. He rushed into his home and shouted at his family, "I just saw him! I saw the chinese dentist! He's real, and he gave me a stick with bristles on it!! Behold this magical brush!"
by Horace Zemelli November 26, 2006
Get the chinese dentist mug.