jump on
phrasal verb
jumped on;
jumping on;
jumps on
Definition of jump on
informal
1
: to become very angry at (someone) : to angrily criticize or shout at (someone)
The teacher jumped on us for being late. The coach jumped on him for not playing hard enough.
2
: to strongly attack or criticize (something)
She was quick to jump on her rival's poor record as governor.
3
: to get on (a train, bus, etc.)
He jumped on a plane and headed home.