The noise made when one sticks their tongue out whilst simultaneously blowing air outwards. This causes the tongues tip and sometimes palette to vibrate at a high frequency and produce the iconic ‘pleurp’ sound. It can be used to make the sound of flatulence, mock or play with someone in good humor. It is most typically used as a personal joke or communication tool between people of the commonwealth.
“Hey Meg and Alex, pleurp, pleurp PLEURRRRRRRRRPPPPPPPPPPPP!”