happening by coincidence, accidentally and unintended
By happenstance, my mom and my dad were both shopping for each other's gift in the same store.
by Caro D March 22, 2007
Top Definition
/ˈhæpənˌstæns/ Show Spelled Pronunciation hap-uhn-stans

the standing position one is in when happening, or ejaculating.

(one's happenstance is usually unique to oneself)

See happen.
Alex: "So bromeo, how'd last night go?"
Christian: "Well, I happened upon this girl, right?"
Alex: "Right."
Christian: "But this was no simple happenstance. I had my hands on my hips and my pelvis thrusted forward like I had conquered the huns."
Alex: "I'm so proud..."
by Brahmastra October 19, 2009
When shont gets pulled.
I was going to go to Fairfield, but at the last second I decided to just yell happenstance.
by Mark F January 24, 2004
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