Co-boyfriend

When a girl's boyfriend is emotionally distant/abusive, and she doesn't want to just end the relationship, she may seek the comfort of a co-boyfriend. The co-boyfriend hears her complaints, and this allows the broken relationship to continue on a bit longer.

Trina's boyfriend doesn't listen to her problems, so she talks to her co-boyfriend Jack about how shitty her boyfriend is instead of just DTMFA (dumping the motherfucker already).

co-grandniece-in-law

Spouse's grandnibling's wife.

My co-grandniece-in-law is a good person.

co-grandniece-in-law

Spouse's grandnibling's wife.

co-grandniece-in-law.

cos

harry potter and the chamber of secrets shortened

“i just watched cos”
“ew that’s the worst harry potter film”

Cos

Come on slut.

COS you know you want this

cos

an emotion of being high, drunk, or overly weak as in a laughing matter.

Bes, bes i’m cos.

cos

when someone is “cross faded”, “high off life”, or “drunk”. most likely used around friends.

example: “bes, i’m cos”