se laisser aller

to let oneself go

→ se
phrase Rare #42,646
to let oneself go Can mean to relax and stop making an effort, or to neglect one's appearance or responsibilities, depending on context.
FR: Après une longue semaine, il aime se laisser aller et regarder des films toute la journée.
EN: After a long week, he likes to let himself go and watch movies all day.