It means to grab a coffee and chill with your friends and or partner, but it is also a code for sex. When you ask someone to "Cotch n Coffee" it will have to depend on the circumstances so there will be a different meaning for it.
Circumstance 1:

Dave: Do you wanna cotch 'n' coffee?

Anne: Yeah ill come round yours in a bit

Dave: See you in a bit then

Circumstance 2:

Dave: Cotch 'n' Coffee?

Alex: Yeah man starbucks?

Dave: Calm man, meet you there around 2.
by jkbjk February 11, 2017
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Evolving from an ancient Chinese martial art, where all pupils are implored by masters to drink tea in the company of brothers. Chilling and cotching with your boys whilst having a special "black-belt" brewed tea in hand.
by Brap Tingsies August 28, 2010
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A Midsummers Night retreat used by a certain miscreants of the West Lothian region.
"safe im just going out for a walk"
translated into:
"Seen going to meadows bush cotch so i can facilitate bashment whilst spying on yats"
by Meadows Park Warden May 21, 2006
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Used in the same way as safe or chill, generally used to describe something as nice, good, appealing. Refers mostly to an event or gathering when the night went well.
Person A - "Mate, you missed such a good gig the other night"
Person B - "Yeah man, heard it was Cotch"
by flowver_m November 11, 2018
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• To slumber in a cheeky manner, for example after eating bare Nandos, or after Netflix and Chill
"Oi cuz u awake?"
"Nah I'm cotching"
"Safe"
by $ir September 1, 2015
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1. To hang out and smoke weed on your own or with others.

2. Alternate for weed

3. Used to describe something good/interesting
1. "You guys want to cotch later?"

"we're going to cotch at Sam's house later"

2. "Where did you put the cotch?"

"Dude, I bought 2g of cotch, you wanna come over and smoke?"

3. "Titanfall 2 is pretty cotch when you're stoned"

"There is nothing more cotch than a lava lamp"
by RDLR March 5, 2018
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