It's saying thanks as a response to the slower truck flashing its high beams to ...

		YeahThisIsMe on Nov 29, 2021 \| parent \| context \| favorite \| on: The origins of ‘horn ok please,’ India’s most ubiq... It's saying thanks as a response to the slower truck flashing its high beams to let the faster truck know it's now safe to move back over to the slower lane.