to hit on and make friendly with a new person.

Joe has been chatting up all the girls at the party, hoping to find one that will accually go home with him.
by c shawn November 10, 2006
Get the mug
Get a chatting up mug for your Uncle Trump.
To speak to someone with the intent of eventually engaging in sexual intercourse with them. Generally conducted in a relaxed, playful and outstandingly obvious manner.

Almost invariably carried out by men on women; to be a male recipient means you're either extremely lucky or the giver believes you, as the British say, to bat for the other side.

A common, braindead, and therefore quintessentially British phrase, which explains the strange and nonsensical definition(s) sitting next to this one. To chat up is a type of the unfortunate word of banter, which shares all three properties mentioned above.
Guy 1: "Cor, look at all the fit birds in the place!"
Guy 2: "Yeah, I'm gonna chat up the one in the tight black skirt. Phwoar!"

Guy 1 walks in hungover and bruised.
Guy 2: "What did you get up to?"
Guy 1: "I got trashed and started chatting up this stunner. I started pulling and I was all set to bang her but then her boyfriend came back from the bar."

A couple are at a restaurant. The girl goes to the restroom while the guy places the order. When she comes back, the guy and the waitress have just finished talking.
Girl: "I can't take my eyes off you for a second. You were blatantly chatting her up."
by Isacki February 18, 2009
Get the mug
Get a chat up mug for your dog Larisa.
The word used to tell someone to chat online

To use the chat feature in a virtual meeting

The complete opposite of shut up, except using an online chat tool.
Please chat up?

Are you going to chat up?
by May 25, 2021
Get the mug
Get a Chat Up mug for your boyfriend Trump.
a chat up line designed to shock and amuse
a cheeky chat up line is: call me butter coz I'm on a roll OR call me flora coz i spread easily
by aliceu February 28, 2012
Get the mug
Get a Cheeky chat up line mug for your mother-in-law Nathalie.
Talking sexy to someone knowing full well where it will eventually lead.
I'll chat you up late tonight, baby.
I am so gonna chat him up tonight.
by Rulee December 06, 2008
Get the mug
Get a chat you up mug for your papa James.