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1.
Gimmertron is an insult that mixes the word gimmer, with the suffix tron. This makes it sound more hardcore.
"Oh my god!!! That fuckin gimmertron stole my best pair of pie eating boots"
by Kevin McNash July 11, 2004
 
2.
A gimmick of mechanical nature.
"Kev, you're a fucking gimmertron!"
by Inn July 13, 2004