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To Jack a Floppy is when you get so high that even the slightest stroke on the Penis will cause ejaculation of human semen or NUT, since a boner is not necessary you are thereby Jacking a Floppy
Homie #1: Bro I got so high last night I had toJack a Floppy
Homie #2: Sickkkkkkk dawg
by Vapelord 2000 June 01, 2018
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