Injuring oneself by using a sharp object to try to open hard-to-open plastic packaging like the kind they sell cheap consumer electronics or household items in. Growing phenomenon described in the Pittsburgh Gazette and popularized by Stephen Colbert.

When you've maxed out all your credit cards.

Describe a vehicle with wheels that are less than desirable: too small, ugly, mismatched, trashy, horribly colored, etc.

A person that spends a keen amount of attention and energy on knowing the ingredients of food, the proper preparation of food, and finds great enjoyment in top-notch ingredients and exemplary preparation.
A foodie is not necessarily a food snob, only enjoying delicacies and/or food items difficult to obtain and/or expensive foods; though, that is a variety of foodie.

a style of writing that uses only lower-case letters.

n. Muffling out an interlocutor by slowly - yet unexpectedly - turning away their cranium with the palm of your hand. Can be construed as either playful or patently insolent by the receiving end.

1.verb: to show someone (or thing) that they are wrong or that they do poorly in reference to a specific field through punishment or humiliation