uncertain, sketchy or dodgy.

Usually if something or someone is iffy it is odd in an inexplicable way.
Person 1: Dude that guy over there looks very iffy.

Person 2: yeah we should probably stay away from him.
by Skryko December 6, 2019
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/IFfe/
noun
1. A female who is on the spectrum of thicc and fat but not quite either one; One, particularly females, who's proportions do not quite fit into a stagnant classification of body type.

adjective
1. of being a thiccfat bitch.
" I mean she ain't fat, but she ain't thicc bro', she a iffy."
by Philosopher of Ass August 7, 2018
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Nasty, or just plain unsettling
Nigga that shit in Portugal was iffy, we fucked with the wrong homies there.
by El ritardo June 19, 2018
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When you think a girl likes you, or if you are just picking up random things as signs and getting boners for no good reason.
Man dat girl is a big iffy.
by John Wick 12321 December 10, 2019
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