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1.
n, feminine - To thrash ones arms and legs wildly on the bed due to sexual ecstacy, especially upon having an unexpectedly good orgasm. This process can also take place on the floor (esp in hotels) or sofa.
As if to show how good the sex was and her delight she started heathering on the bed
by Robert Cragg June 02, 2005
 
2.
A term based on the 1980s movie, "Heathers" in which a group of people, usually popular, gangs up on another group or person (Unpopular) and bullies them.
I was walking to my car and Nicole and her click came up and "Heather" me to death.

"Look I'm sorry you don't like me, but please stop Heathering me, its so 1980s"
by ImpossibleGeisha July 23, 2005
 
3.
A verb describing the act of doing nothing while waiting for something else to do or when your work is caught up and you're just chilling. Mostly used in the work setting.
Jessica can you help me with something?
Sure I'm just heathering!

You are so efficient!! You've been heathering all day!

I don't know why I'm so tired. I've been heathering all day!
by Misanthropist123 June 18, 2013
 
4.
a verb used to describe when a person or car passes a car or larger group of people in a no pass zone. see also woopster, crashed car
I was heathering those cars so I could do the whoopster.
by roberto brown May 29, 2011
 
5.
The act of hanging with a group of boys with no interest of hooking up with any of them. The opposite of "chazzing"
"Tonight at Linda and Emma's party, Alana was heathering because she was the only girl"
by KDC123 January 06, 2012
 
6.
The process of deepthroating a large dick. Fitting a large dick into one's mouth
Look at this girl she is heathering a nine inch cock.
by Mister XXX February 26, 2004