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1.
A ladyboy, transexxual or shemale.
"Jeez Mick, have you seen the arse on that girl over there? She's a real beauty"

"You've had far too much to drink Ed, that's a geezoid"

"Shit".
by Ed Bosh August 18, 2008
 
2.
Transsexual, also known as 'ladyboys' in Thailand. Geezoids are mostly nocturnal and often answer to the name 'Dave'.
"Crikey! that bird over there is gorgeous"

"Don't be daft, that's a geezoid"
by Ed Bosh July 28, 2008