godan verb (-mu), transitive verb
pester; badger; beg insistently
Used when someone repeatedly and annoyingly asks for something, often a child to a parent or a persistent person to a reluctant giver. Implies nagging or whining.
子供がおもちゃを買ってとせがんだ。
The child pestered me to buy a toy.
彼女は彼に旅
She kept begging him to take her on a trip.