godan verb (-ku), intransitive verb
Describes something physically sticking or clinging to something else, often with a sense of being attached firmly or persistently.
ガムが靴の裏に引っ付いて取れない。
Gum stuck to the sole of my shoe and won't come off.
The wet shirt clings to my skin.
godan verb (-ku), intransitive verb
become intimate; get close; get married
Colloquial use for two people becoming romantically involved or inseparable; often implies a budding relationship or physical closeness.
あの二人、最近引っ付いたらしいよ。
I heard those two got together recently.
合コンで引っ付くカップルもいる。
Some couples get together at group dates.