godan verb (-ru), intransitive verb
jump onto; hop on; leap aboard
Describes quickly boarding a vehicle or animal by jumping or hopping on. Used for trains, buses, taxis, horses, etc.
彼は走ってくるバスに飛び乗った。
He jumped onto the approaching bus.
駅前でタクシーに飛び乗った。
I hopped into a taxi in front of the station.