A term used to describe someone who continually bails on their friends, often using terrible excuses and ignoring text messages.
I guess she isn't going to the movies with us. She is such a plant sitter.
by Allie Burper August 10, 2017
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a term used to describe someone you hate.

(mean to get sexual pleasure from sitting on plants.)
dude i hate so much that kid he's a plant-sitter
by buttmaster808 August 6, 2010
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