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1.
Young british comedian who represents the personification of what unfunny is.
This film, 'Epic Movie', is very Jack Whitehall.
by japan air December 31, 2010
 
2.
Is the opposite of comedy. He is a stand up comedian so unfunny, he actually makes you cringe. He is about as funny as an AIDs flavoured ice cream. He represents a new generation of comedians who are simply on TV because they are reasonably attractive to 14-year-old girls who don't realise what comedy is. He is one of the new comedians that don't need jokes, but just swearwords and prancing around a lot. His lack of talent, however, is not an obstacle for Jack, because his father is a high-profile talent agent formerly in charge of people like Judi Dench, and this basically means Jack inexplicably is present on every TV show despite being utterly shit.
Kid: Mother, there is a funny smell coming from the toilet.

Mother: Do you mean 'funny' as in shit, or 'funny' as in Jack Whitehall?

Kid: Arn't they the same thing?

Mother: Actually yes, but I wish the shit would get booked on 8 out of 10 cats more, as at least he has funnier material.
by ozlehfewfhgg February 26, 2011
 
3.
HES FUCKING HILARIOUS
BEST COMEDIAN EVER
IN FRESH MEAT AS JP
FINALIST IN "SO YOU THINK YOUR FUNNY"
"WHOS THE BEST COMEDIAN EVER?"
"JACK WHITEHALL OBV"
"OBV...."
by Eva Vickers December 28, 2011