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To go on a Major Boon (a Drive while smoking a blunt)
or to Just have a major smoking session in General
Other Term can also be used such as: Flimfin', Flimfin Flomfin or even Flumfin'
"Yo grab your keys, were goin on a major Flimf"
"Holy shit that Flomfin just kicked my ass"
" Yo son wanna go on a Flomfinstein later?"
by J Mullan January 31, 2010