Describes cute and critter-like behavior of a person. When a girl is comfy with a guy that she loves, she will exhibit positive creature-like behaviors such as cooing, gurgling or purring. Other signs of being adorbs includes the innocent bobbing of the head, making cute faces, nuzzling, or talking like a little girl.
"My girlfriend is so adorbs! Every day after I come home from school she puts her head up against my chest and nuzzles me."