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The phrase "jonsing" is believed to originally derive from the Grateful Dead song "Casey Jones":

"Riding that train high on cocaine, Casey Jones you better watch your speed"

"Jonsing" means to be in a state of withdrawl and/or need that next fix. Originally for drugs, but it has come to generally mean any strong craving (for chocolate, sex, coffee, sugar etc.)
"I'm jonsing hard!"
"I quit smoking yesterday and I'm already jonsing"
"Jonsing for carbs"
by MariaFF July 21, 2009
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I couldn’t care less (but one must keep up appearances, right?)
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So high, or so totally fucked that the only thing to describe it is jone-sing. Jonsing
Im steady jonsin
u wanna jones it
jones that shit
jones my jones
im so jonesed my jonsed is jonesed
im jonsing
by Gagan Sran May 20, 2008
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