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3.
Slang for twin-tip, or park, skis.
Dude, check out my new twinnies. Let's go rip up the park with these bad boys.
by alfonzobonzo March 21, 2010
 
1.
Two really cool girls who think alike.
When you think of twinny, think Romy and Michele from "Romy and Michele's High School Reunion."
by twinnyyyy January 13, 2008
 
2.
two really cool people who think the same and are really awesome
you my brother from another mother, you're my twinny.
by twinnnnnyyyy September 20, 2010
 
4.
An fantasmagoracle, amazingly beautiful twinny who you get along very well with and you constantly try and be better than BFFS (usually boy and girl)
"look at that chick!, yea man shes my twinny ;) "
by sparkle.dude June 22, 2012
 
5.
As in stealing photographs from other people.
Also as in i don't have a job and ride a motocross bike very badly
Twinny was stealing photographs
by Ash sx 125 March 17, 2007