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1.
Another name for the blumpkin backfire.
The other day when I was giving my boyfriend a blumpkin, all of a sudden, when his tird hit the water my face was inundated by a geisler.
by Dirty Pirate Hooker2 November 05, 2010
 
2.
noun: (gee-zler)

POPULARISED by the famous band N'Sync, means to capture on VHS girls kissing and then show it to a whole elementary school.
"Woah, look at that guy, he's totally a Geisler!"

"Did you happen to see that Geisler last night? It was off the chain!"

"All the parents from the parent counsel filed complaints about the Geisler they showed yesterday"

by the girl down stairs January 18, 2009