A loser who has no real friends in their life, that sees faults in relationships. strikes planting venom and gets off on it
That guy that got between mark and brian is a real snake in the grass.
by Snake3ater February 26, 2017
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Yeah, I went on a date with Gary last night and we so did snake in the grass.
by GayCarcinoma March 6, 2009
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Someone who pretends to be something other than what they are, while hiding a nefarious agenda.

Note (1.) A snake in the grass doesn't have to be sadistic, but they have to be self-serving enough, they don't care who they hurt in the process of achieving what they want.

Note (2.) The term "snake in the grass" has been around a long time. Long before people had lawnmowers, or constantly trimmed their lawns like a military buzz cut. So the grass metaphor used to be more obvious. When the average person's lawn used to grow past their ankles..snakes were rarely visible.
If you want to describe a cold blooded human with hidden intentions, "snake in the grass" isn't a bad choice.
by Olive989 March 24, 2023
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When the perception of a situation or event is not the way it first appears, but has a much more serious and sinister hidden intent not readily apparent to a casual observer .
When a house burglary is reported by the owner, but when the police arrive to inspect, the clues do not quite mach up with a burglary, but look like the owner has "staged" a burglary for the intent of filing a false insurance claim. The detective might say 'I think there is a snake in the grass, with this robbery'
by MikeEcho May 17, 2018
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So...some bitch is sleeping right? you sneak up and slap ur huge cock acrossed her face. And whisper "snake in the grass"
Last night my mom was sleeping i walked in and whispered "snake in the grass" as slaped my dick acrossed her face
by Dingle D June 26, 2009
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