Isaacishish

1. To show signs of acting like Isaac, especially in science-fiction areas, during everyday conversation.
2. The act of repeatedly impressing your friends with witty banter, much like an episode of Gilmore Girls or a person who is Kristerrific.

Oh, that Darvil cracks me up! He is so freaking Isaacishish!!

by Martha March 19, 2003

Isaac

The type of dude who will fuck you over. The dude will "help" your best friend but really cheat on you. Its the type of dude who plays with ya & other girls. He's the worst kinda dude you will ever meet & you'll be able to tell he's an Isaac bc he's so freaking ugly,, he looks like Slender Man. Anyways don't date him you'll get your heat broken.

Her: omg is that Isaac?
Me: duh he looks like Slender Man so he totally an Isaac.

by Unknown2704 August 12, 2018

isaac f

A lovely and caring and suuuuper smart guy who is hotter than the sun. He's so lovable and clueless and sweet, and athletic as hell!!! He sometimes loses stuff but it's okay 'cause he doesn't know how to be malicious.

girl 1: duuuuude, did you see isaac f?
girl 2: Yeah, he's so sweet
girl 3: He deserves the worrrlld!!

isaac f: *smiling and being sweet and making people laugh and being amazing*

by shindegomi August 20, 2018

Isaac

Isaac means cunt in dick

That bitch Isaac suck my cunt

by Fickincunt October 4, 2018

isaac

the absolute unit of a man, he loves food, hes fat

this mans is such an isaac

by SDDDFDHJDSFKHJDHJKDFHDFSDJJKSD January 7, 2019

Isaac

A bad bitch like the best hoe on the block like the coolest bitch in the city. Bitch he will be so nice to you but he has a short fuse and piss him off and hi will whoop your ass

Hoe 1:hi Isaac

Isaac:hey bitch

Hoe 1:I don’t like you

Hoe 2:girl don’t talk to my friend like that

by Bhadieee January 11, 2019

Isaac

That one who always butts into every conversation and acts like a massive know-it-all. Nobody likes to see them as they just KNOW Isaac will think he knows more about whatever you're talking about when they obviously haven't a clue what they're talking about. Also always wears Airpods the rich prick.

"Dammit, here comes Isaac..."

by darthhdsgjsyrjsrrraehsyjsdjkdu March 3, 2019