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noun: a person, of terrorist persuasion found at Guantanamo Bay. Often found hitting American soldiers with shit and being rewarded.
Guard 1: I cant believe they let the tainers have tv.

Guard 2: All they had to do was hit Eric with shit.
by ICRC in training December 26, 2009
the area between your anus hole and your vagina-Its different than a taint in that it smells like cheese
oh thats just my tainer
by i told you so dude April 23, 2011