A fun day for cyclist on the 10th September. Fellow cyclists in London greet each other with a little ‘Ding Ding - Hello’ on their bicycle bell.
Alan is riding along Oxford Street on Ding-Day and sees another cycle, so he dings his bicycle bell, the young lady riding the other way returns by dinging back.
by WildKatPR August 6, 2008
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Usually used to expressed excitement, or any other feeling in mr jacob's class
what the fag.

ding-day-bidda-wah-cacaguates. whatthe
by Schnaff September 20, 2003
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ding dong just is another word for.. dick. anywho, suck ding dong day!
joe mama: “yo bro did yk its national suck ding dong day!!?”
ur mom: “nope i didn’t know haha”
by bruhstopnojoemama October 9, 2021
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