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1 definition by Johnny Williams

 
1.
Pronoun. Used as a jargon term better Border Patrol Agents to describe someone who is present in the United States illegally. (Exception: Some Dim-witted TCA PA's use the term UDA, even though most TONKS are well documented in IDENT as illegal.)
"Grab that guy over there in the Cowboys jacket. He's a Tonk too."
by Johnny Williams February 27, 2005
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