devil's umbrella

Poison hemlock or water hemlock, Conium and Cicuta respectively. They are both deadly poisonous umbelliferous plants. The poisons in these plants act differently: Poison hemlock (the hemlock of Socrates' time) contains coniine, which causes ascending paralysis and suffocation, and water hemlock contains cicutoxin, which causes violent convulsions and nervous system collapse.
That's a devil's umbrella, Johnny. Don't even THINK of picking it!
by pentozali June 18, 2009
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Devil's Umbrella

Guy 1- Dude...Did you hear that Nathaniel's got the devil's umbrella!"
Guy 2 - "No way...I thought that guy was normal"
by reubentheboobinjewbin December 07, 2010
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