Yodel (verb)

1. To sing a song that alternates between high and low pitches, typically in a rapid and repetitive manner, often with a distinctive warble or yelping sound.
2. To shout or call out in a similar manner.

Origin:

From german 'jodeln'.

Examples:

1. The Swiss alpine herder yodeled to communicate across the mountain range.
2. The football fans yodeled their team's fight song during the game.
3. She liked to yodel in the shower to practice her singing skills.