being gleeked is when someones uses the use of saliva glands to shoot saliva at you.

building up saliva in the salivary glands using some stimulus, like sour food or yawning, and then pressing the tongue upon the glands, causing the saliva to shoot out, usually at an impressive distance.

That long stream of spit that sprays out from under your tongue.

Originated from the 70's superhero cartoon Spaceghost where a space monkey character named Gleek from the planet Exxor would often spit from under his tongue. The word 'gleeking' was derived from this action.

the use of ones saliva glands to shoot the saliva a credible disatnce, with the intention of hitting someone

1. n. a projectile sublingual gland secretion in the form of a single stream, usually stimulated by a sour taste or by yawning, sometimes involuntary, often controlled and used as a sly way of spitting on someone.

2. v. the act of projecting sublingual gland secretion on to someone

A jet or spray of saliva that shoots out from under someones tounge. Some can squeeze their salivary glands and spray, but often someone will "gleek" on accident when yawning or opening their mouth widely.