Define Ding Dinger Meaning

Ding Dinger
the gates that blink and go down before a train goes by or a bridge goes up

-hey, why are all these cars waiting around?
--the ding dingers just went down, the train is about to pass.
By Carolyn
Ding Dinger
Two men snorting drugs off each other’s dicks.

Yo bro let’s go snort coke off each other’s dicks. Yea bro let go rip some ding dingers.
By Adela