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Of, or pertaining to, a person of quite, calm, meditative, reflecive, or comatose composure; acting as such during all times of the day and night, except when playing music, or after having eaten a truck-load of sugar.
"Rick is being such a Peter Zerkel today! Normally he's louder than the entire band playing Fireworks. Dude. Whoa."
by Elmo August 10, 2004
The man, who invented light bulbs and the vibrator. He made millions.
I'm gonna be as rich as Peter Zerkel!
by re-re January 16, 2003