2
An inept internet troll. Someone who is incompetently and over-confident in trolling.
Yeah, he said he was an elite troll, but he's just a stainer.
by Cfame March 30, 2013
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3
Derived from a person who sucks. They are just a stain on the map. A person who ruins a good time, is unwanted or sits on the the bridge with the rats.

can be used in various forms: Staining; that stain; those stainz; stainzilla
1-Look at that stainer over there
2- Naa he's with Jim too....
1- oh yea.. those stainz
by gunzoid November 28, 2006
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4
People who would have been better off left as a stain in their parents underwear. Usually pertaining to inbred hicks, rednecks and low-income housing dwellers with the mental capacity of a worm or other invertebrates, etc...
i)"wtf is that stainer doing driving a tractor down the highway at rush hour?"

ii)"Look at the group of stainers drinking beer on their lawn, sitting on living room furniture"

iii)whore-"Hey cutie, care for a face mask"

mother-"Stay clear of the stainers Billy, not until you're 12"
by Word Burglar July 12, 2009
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5
A ink that kills panels or anything else it touches. takes a little to dry. goes well with a L marker. Holla at kiloe if you need some.
Yo, that fool rocks some bomb ass stainer.
by serch March 09, 2006
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6
A person who is so unforgivably smelly that they become offensive to the people around them. They no longer become something like a gas, they are a stainer.
"Debbie was so smelly today, she was such a stainer"
by HeyoPotatoe December 13, 2014
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7
An abbreviation of the word wank stain used to describe gingers, nonces and gypsys.
“ OI STOP STEALING MY CARAVAN YOU STAINER

“GET OUT MY ROOM YOU STAINER “ Stainer wank stain

“*stalls car*What a stainer
by DnixXxMeMeS#4 December 17, 2017
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