Top Definition
Meaning somebody who is j-u-s-t THIS side of heterosexuality, a borderline bisexual. Based on the 100% scale. (51% / 49%)
"Hey dude, you reckon that Robbie Williams & Sigourney Weaver are fiveonefourniners??"....

"Pretty sure on SIGOURNEY dude, as for ROBBIE.....he's debateable"
by The Barse August 03, 2009
5 Words related to Fiveonefourniner

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