Originates from "getting lemon sneaky". To be throwing lemons or to have lemons thrown at you refers to any kind of sexual act.
Dan: "How was last night?"
Jess: "It was so funny, this girl was throwing lemons at everyone!"
Emily: "Even Jess had lemons thrown at her!"
Dan: "Oh, lemon sneaky!"
Jess: "It was so funny, this girl was throwing lemons at everyone!"
Emily: "Even Jess had lemons thrown at her!"
Dan: "Oh, lemon sneaky!"
by iamem July 28, 2009
Get the throwing lemonsmug.