noun
lantern bearer
Literal meaning: a person who carries a lantern, often in a procession or for someone else.
祭りでは、提灯持ちが先頭を歩いた。
At the festival, the lantern bearer walked at the front.
Figurative use: someone who flatters or ingratiates themselves with a superior, like a lantern bearer lighting the way for someone important.
彼は上司の提灯持ちで、いつもご機嫌取りをしている。
He's a brown-noser for the boss, always sucking up.