oppurtunivore 

One who repeatedly takes advantage of those people and situations around them, rarely doing anythign for themselves.

Oppurtunivores may use this skill to hitch rides from unwilling 'friends' or incessantly mooch off supermarket sample stands.

See Sample Slut.

Whenever she is in the grocery store, Susan turns into an oppurtunivore, hitting up free samples whenever she can.

oppurtunivore by ///Motorsport October 14, 2006

opportunivore 

An individual who seeks food in any situation where no exchange of capital is needed, e.g., dumpster diving or crashing a wedding buffet

As an opportunivore, Lance preferred sponging off of friends rather than braving the cold, wet dumpsters.

opportunivore by Dr. Octopus December 18, 2002

opportunivore 

Someone who selfishly exploits or takes full advantage of any situation involving free food or items.

The opportunistic omnivores in the office will eat anything we leave unattended in the kitchen, and now those opportunivores have eaten all the Christmas cookies.

That opportunistic jerk took all the free condoms from the clinic, they're such an opportunivore.

opportunivore by Knickerbøcker November 30, 2009

opportunivore 

Someone following the "high-everything diet", i.e. high-fat, high-carb, and high-protein, without any restriction on calories or macro-nutrient ratios. Could be a competitive eater, big body-builder, or just a normal person who will eat anything.

An opportunivore will eat whatever is available.

opportunivore by rensielk March 27, 2009