To become entangled or entwined (e.g., threads, hair); to be involved or tangled up in something (e.g., affairs or disputes). Intransitive.
耳にかけたヘアピンが髪に絡まって取れない。
The hairpin hooked behind my ear is tangled in my hair and won't come off.
事件の裏にはいくつもの利害が絡まっている。
Many conflicting interests are entangled behind the incident.
釣り糸が岩に絡まってしまった。
The fishing line got caught (entangled) on a rock.