Hum dinger
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an adjective used to describe something of large importance, significance, or shocking
Hum dinger meaning & definition 1 of Hum dinger.
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When during a Blowjob the giver hums to the Batman theme song whilst an erect Penis is motioning back and forth in their throat and at the same time simultaneously flicking the receivers balls as if it were the lunchtime bell.
Hum dinger meaning & definition 2 of Hum dinger.