Sentence:  My buddy can <WSD>gleek</WSD> (thats what he called it too) but he used highly pressured spit forced out between two teeth with his tounge to do it. 
Meaning of the word marked with <WSD> tags:  To discharge a long, thin stream of liquid (including saliva) through the teeth or from under the tongue, sometimes by pressing the tongue against the salivary glands.