a term used to secretly talk about a women being on her menstral cycle.

having ample inventory

When you are tossing and turning in your sleep. You keep your eyes shut but the brain traffic won't stop and all those people talking in your head are inviting more people over. Pretty soon you have to take stock of the situation otherwise the cranial inventory is out of your control and your brain might explode. Eyelid Inventory is the only way to keep the situation on your level. You may not sleep but your chaos is organized.
And your pillow case is clean in the morning

to check eachother out nudey booty

To masturbate profusely

A inventory thinker is a person who gathers and stores a collective of unoriginal ideas, words, and/or expressions, while being unable to think upon the originality of those concepts on their own. A inventory thinker thrives off of self-gratification and popularity as a means of collecting from their environment. A inventory thinker loves to throws around recycled phrases, information, or insults for whatever gain they experience from doing so. A inventory thinker thinks of themselves as witty and clever, while demonstrating the complete opposite. Behaviorally, They are most likely to bandwagon things that they don't put much research or thought into. They are considerately ignorant. They would most likely scour Urban Dictionary attempting to collect existing ideas for themselves. They are also found vastly among the religious.

A "Cemo55 Inventory" is a phrase commonly used on the online adventure game Runescape, by Jagex ltd. It basically means a person who brings 1000 brews to easts/west dragons with a summoning creature in pvp/bh worlds, reffering specifically to the spastic legend, Cemo55.

When someone on your team steals your loot.

Someone who gets off on conformity.