Besides the common definition, a BDSM symbol of attachment of a submissive to a Dominant through collar made of metal, leather, or other material. Similar to a wedding band in vanilla society. Most collars are equipped with rings where a leash or restrain can be attached, like a dog's collar.
Wearing his collar to sleep was uncomfortable, but it reminded John all of the time that his Mistress loved and owned him, and he felt safe.
by Aileen April 21, 2003
1. to arrest someone

2. an arrest
We collared the maniac just when he thought he had escaped.
by Light Joker January 26, 2005
Someone who has been take'n into custody, or arrested by th police.
"You killed that woman johnny know your a collar for murder!"
by Kro September 4, 2003
to collar sum1 -
give them a hickey (only guys)
girls give them to guys!
-omg i hope he lets me collar him
-sweeeeeeeeet
by jenna mc carthy March 11, 2008
The part of a shirt that I use to stash my crack pipe
"I need some crack... Gimme a sec to pull it outta my collar."
by WyndX May 9, 2003
The collective noun for a group of douchebags, referring to their habit of turning up the collar and/or cuffs on whatever shirt they are wearing, regardless of how ridiculous it looks.
Wow, this place is crowded. I had to squeeze through a collar to get to the bar and now my shirt is covered in their spray tan.
by fatninjakid October 6, 2010
A term used to define relationship status after one party has received a necklace (or in some cases, a bracelet) from their significant other; a sign of romantic possession.
"Woah, did you see what John bought Jenna for Christmas?" "Yeah, dude, she's collared now. It's totally official."
by WastingRain May 27, 2017