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50.
Short for Jack Daniels - a popular, strong whiskey
Yo pass the jack!
by drunkhex April 12, 2013
 
51.
King of Awesomeland that invented the term "BOOM™"
Jack really does know everything!
by gehenosterreich January 01, 2012
 
52.
jack is someone with a maasive cock, and nice nipples, he is tasty in bed and has good taste in music.
'oh you've got a big cock'
'yeah its called jack'
by lovejackybabieeeeeeeeeeee October 15, 2011
 
53.
A british jackass that annoys the fuck out of others, also known as Anon, will most likely lurk underneath your bed requesting to play video games
"That guy is such a Jack, look at him,"
"Oh yeah, he called me his m8 one day"
"he called me a faggot"
by stitchez July 07, 2014
 
54.
Jack is someone who is exceptionally gay and has a secret(or many secret) relationships with boys. However he tries to hide this by chasing skirt and basically getting as much pussy as he can. Sometimes he may truly have feelings for the girl but he tends to prefer men. The signs of being gay are all there and many people say that he's gay but no one really thinks it.
Girl: You know Danny right?
Boy: Yes! Oh my god he is so fit!
Girl: What the fuck?! Your such a Jack.
Boy: No I'm not. Suck my Dick bitch.
by BlondeBitch1975 February 22, 2014
 
55.
Fucking best guy ever.
jack is awesome
by zane bear December 02, 2013
 
56.
Tall, friendly and extremely calm. Fun to hang out with and talk to. Calms you down and can brighten even the worst of days. Very good listener. Can be a bit shallow. He is a great friend to have
Hi Jacky
by awesomesauce155 May 21, 2013