(1) verb. The act of sucking or licking ejaculate (or other substances mixed with ejaculate) out of the orifice in which they were deposited. Most commonly used to refer to sucking out semen after anal sex, but technically sucking the semen out of your girlfriend's pussy is also felching
(2) Noun, referring to the substance ingested during the act of felching--generally a mixture of semen and other bodliy fluids (feces, sweat, vaginal fluid, etc.)
I couldn't belive it. After Nigel packed my ass, he felched me!
Slang for "Hayabusa", as in the Suzuki Hayabusa motorcycle, also called the GSX-1300R. The Hayabusa (at the time of writing this) is the world's fastest motorcycle in a straight line speed contest, due to it's very large and powerful engine. However, due to it's large engine and high weight which equate to poor handling, it is unpopular for road racing. The Hayabusa is popular for drag racing (due to it's speed) and is popular amongst squid, who don't care about handling anyway.
Check out my new busa! I was goin' 150 down clearview drive this morning!