Definitions

1. verb

to produce a low, repetitive humming or whirring noise

“The old air conditioning unit started to tirrwirr in the background, distracting from the meeting.”

2. noun

a low, repetitive humming or whirring noise

“The strange sound in the room was a tirrwirr from the old refrigerator.”

3. interjection

an expression of surprise or excitement, typically accompanied by a low, repetitive humming or whirring noise

“Tirrwirr! I just won the lottery!”