A variation of the slang "Attaboy" except instead of the boy, it is babe. All in all, attababe means that's a good babe. It is a patronizing word showing good work, perceived ownership, etc. Used among friends.
(After Don hits the homerun)
Dick: Attababe, Don, that's how we do it.
Also atta babe.
Portmanteau(ish) of "Thata babe!", which came from "Thata girl/boy!" which itself is probably an abbreviation of "That's a good girl/boy"!
Can be seen as patronizing by some, but is usually seen as an exclamation of encouragement and/or a compliment of one's behavior or achievement, offered either to one's significant-other or close (typically female but isn't necessarily gender specific) friend.
(After his girlfriend cracks open a long neck bottle with her teeth)
"Attababe!"
A "human" that spends so much time playing video games that their posture is level nerd neck. Everytime anyone goes tryhard they hunch down and their neck gets longer there fore a nerd neck is always hunched down cause they're always going try hard. In other words a nerd neck is a try hard, since their neck is 100% longer than the average human being due to playing too many video games and taking them serious, nerd necks are not even considered human anymore but something more sad. Nerd necks are often found on fortnite, their natural habitat usually being tilted towers.