fever pitch

buck fever

Excitement and nervousness felt by a new hunter upon seeing game.

pitch in

To help out; lend assistance; contribute; to do one's part to help.

queer someone's pitch

To make a task more difficult for someone.

roll the pitch

Preparing audiences for an unpopular change.

spring fever

A feeling of invigoration and restlessness associated with the arrival of the warm weather and renewal of nature in the spring season.