Top Definition
A SlyBi is a name for a bi person that secretly likes a straight person. But he/she is so sly and stealthy that the straight person never notices. He/she can show affection towards the straight person but in a way that the straight person will never notice.
Sally: John seems to really like Sam doesn't he.

Maggie: But isn't Sam straight?
Sally: I know! John's such a SlyBi.
by Sir Koopa February 19, 2014
6 Words related to SlyBi

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