Wiktionary
vb. 1 (context transitive idiomatic English) To increase something suddenly. 2 (context transitive idiomatic English) To promote a person to a higher grade. 3 (context transitive idiomatic English) To give a more prominent place to; to advance position in queue.
WordNet
v. increase or raise; "OPEC bumped up the price of oil"
Usage examples of "bump up".
The willow began to bump up and down on the widening stream, and he had to start fending off rocks that sprang up in his path.
Still, she knew just how to bump up the package when she was in the mood.
What is this, some sort of insane publicity stunt to bump up their circulation?
She turned, off balance, and was annoyed when she had to jerk back or bump up against him.
She'd already discovered, to her mild disappointment, that kissing Tod did absolutely nothing to bump up her blood pressure or her pulse rate.
The Yanks, they've got their own set of supposed-to's, and what we get is what's left over when ours bump up against theirs.
Back on the road in the back of a battered Toyota pickup truck I rented, we bump up the mountain pass.
He could almost feel his heart bump up against the top of his skull from the shock.
No one disturbed him, though he saw the Jecc bump up against Eveleen and the other non-Jecc beings, exactly as they always had.
Whenever you touch wine, you seem to bump up against Mavrix, and when you bump up against the lord of the sweet grape, horrible things happen.
And as they were both busy, they would rarely bump up against each other.
Mira's psychiatric will help, but I can't bump up the charges without some physical.