a guy that can be good but i swear to god if hes under 14 he is a ass i wouldn't give a fuck if he died right now and we have all met a jack before like this
ex:
me:hey jack did your brother come to sleep over to?
jack:uh yah
me:ok cool cause your a ass
jack wtf? why?
me:cause you woke me up last sleepover blasting your music
jack:yeah that was funny
me:flips table
me:hey jack did your brother come to sleep over to?
jack:uh yah
me:ok cool cause your a ass
jack wtf? why?
me:cause you woke me up last sleepover blasting your music
jack:yeah that was funny
me:flips table
by midnightrise September 7, 2013

Someone you will meet and instantly connect with. One of the smartest, sweetest, and funniest guys you'll ever meet. His smile will brighten even the worst days and he will never fail to make you smile. He always rejects compliments and refuses to acknowledge that he is a cutie and is the best person anyone could ever come across. He is extremely intelligent, impressing everyone with his intellect. His sense of humor is extremely sarcastic, which will leave almost anyone gasping for air, due to his hilarious jokes. Overall, anyone would be lucky to meet a Jack, and even luckier to befriend one :)
by beachgurl15 December 28, 2018

the definition of fatass sits on the Xbox all day and sending bad memes. Also he's the extremity of Gay
by PS4 queen August 25, 2019

Athletic, most godamn amazing eyes😍He will always be there for you and comfort u. May be shy but once known, u will fall for him. Niggas will wish he was gay but Jacks a ladys man. He can make girls become niagra falls once they see him💦
by B1GdickB October 21, 2016

someone who has the largest cock in the world. his balls are perfectly hairy and makes you feel orgasmed.
best sex ever with jack
by jackuyjhjjjajajajckajck February 23, 2017

To "jack with" someone is to tell someone a lie in a way that will make that person believe you. To mess with someone, to pull a person's leg.
by SRS August 9, 2004
