noun
level of popularity (with the opposite sex); degree of attractiveness
Colloquial noun used mainly in casual conversation or light media to talk about how popular someone is romantically. Often used in self-deprecating or joking contexts.
See also: モテる
最近、自分のモテ度が上がった気がする。
Lately, I feel like my level of popularity has gone up.
彼はモテ度が高くて、いつも女の子に囲まれている。
He's so popular that he's always surrounded by girls.