Top definition
The word 'Bamyam' refers to a woman or girl's vagina. Also known as poom poom, Nash Nash, Na-na, kooka, axe wound etc.

'yeah so I was banging that Bamyam last night and I hit the juice box twice!'

*A young gentleman referring to the previous night's activity which consisted of him having sexual relations with a girl and making her ejaculate not once - but twice*
Smashing that bamyam NashNash PoomPoom PumPum Pussy Gash AxeWound
by WhyRyWhy June 25, 2016
Happy St. Patties Day!