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A weak person that always gets stepped on. All talk and no action. A non-vocal vocalist. Someone who will recieve a Dirty sanchez willingly and then complain to their peers about it later. Spineless fuck,supreme follower with alot of mouth. Coward of the highest order.
"Tom is such a jelly back at work." He always bitches about the job but never stands up for what he whines about!
That's why he oftens gets a dirty brooke}.
by JESUS ALVAREZ May 01, 2008
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The feeling you get after a REALLY great orgasm. (The spasmodic, spineless back effect)
T: How was that girl last night?
A: Yo...she put it on me, she jellybacked me something serious.
by Nigg Nogg November 09, 2016
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