Top Definition
(noun)It's the sound of the heartbeat when the person you are madly love with or your biggest crush is around you.

Based on the track "Dadam(My heartbeat goes like)" by Dawn Jay

(verb) Heartbeats faster and louder when you are excited about your love or your crush.
When she sat next to me my heartbeat Dadam-ed.
Girl you make my heart go dadam.
by djfans October 19, 2012

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