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1.
This term is used for the art of letting out a fart over a extended period of time. Usually spanning from 1 hour to about 72 hours. Instead of one initial blast, the giver of the installment plan spares his bros and babes the trouble of a nostril attack.
"Yo Ron, you wearin cologn?"

"Na bro, just a lil installment plan."
by pschwill April 05, 2010