1. An offill is someone who steals things by simply being absent minded or someone who does it on purpose and claims innocence.

2. An offill is a friend who will mooch off of you to the point of even thievery. Typically one who borrows things like tools, electronics, and money and never return them.
Oh I'm sorry Officer... I accidentally drove off without paying for my gasoline at the Texaco station up the road

Winona Ryder was caught in 2001 trying to leave Saks Fifth Avenue with more than $5,000 worth of merchandise, she claims she was under heavy meds, but typical signs of an offill.

Hey, it's your brother John Doe... What's up brother... Do you have a power sander I can borrow?... Well I used to however my friend Dwayne is such an Offill I never saw it again...
by Rayden Corverus November 30, 2012
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Old Fat Fucks in Lycra, an evolution of MAMIL (Middle Aged Men in Lycra). Found in abundance within retirement havens in places like the Coachella Valley, the Valley of the Sun, and the entire state of Florida.
I'm tired of all this OFFIL holding up traffic here in Scottsdale.
by Old Fat Fuck March 29, 2018
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