Someone who is crap, usually at their job.
14 SQN is believed to be the origin of the "Dave Y****s Is A Big Jobby" slogan phenomenon. This can be seen all over the world mainly around military establishments. It has not been confirmed if this person is actually a big jobby but the investigation is ongoing. An airman named Dave Y****s was formerly on 14 Squadron.
by Shinyliney February 14, 2007
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1. A large brown solid that makes its exit from a creatures body through the anus.

2. David Becham
1. I just did a big jobby

2. I hate david becham for he is a jobby, in fact he's a big jobby.
by McKean February 14, 2007
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Anas' nickname, someone who thinks very highly of themselves but will never become anything, should be flushed down the toilet, although they tend to be the ones who block it instead.
See that Big Whale Jobby, bet hes called Anas.
by Flubbery Bumole June 22, 2020
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When someone you know, e.g. A peer, takes a dump on your personal belongings on your birthday. Also he then smears it in.
I can't believe what happened on my birthday dude, Stewart took a big fat jobby cake on my brand new macbook pro .

Totally gutted.
by jobbycake March 21, 2016
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