Illegal Mexican immigrants.
"Tonk" is the sound that is made when the illegals are hit over the head with the large flashlights/batons that the US border patrolmen carry.
by John kennedy October 31, 2004

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British slang word for muscular or 'strong-looking'
it has been used to describe girls as hot as well nowadays. It acts as a double for the word 'fit' :)
Girl: Oh he's so tonk, did you see him at football with his shirt off.
by dinaaaaah August 16, 2010

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The sound of a fish hittin' the windshield.
"Man, we shouldn't be driving so close to the lake--oh, SHIIIIIT!"
*TONK!*
by Dale Deltaco May 14, 2008

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When you have an outrageously large forehead and a really tiny head
Damn look at that girl over there she's kinda fine. I'd bang her if she wasn't a tonk.
by Mudizle November 07, 2015

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A big/large/hench person
That woman is bear tonks
The woman is large n has a big build
by leila November 01, 2003

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A BABE
What a tonks
by hollieeeeee12323413245 October 19, 2011

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A person, normally a woman, with man-made hair color or colors, specifically pink or purple. Also can describe a person who changes his or her hair color regularly.
After Nymphadora Tonks from Harry Potter.
Nicole has become quite the tonks with those pink streaks in her hair.
by patricksalland January 25, 2008

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