1 definition by ost2life

A portmanteau of the words "afternoon" and "nom".

Used to describe a snack or small meal between lunch and dinner, roughly between the times of 12 noon and 5 o'clock in the afternoon.
An afternoon equivalent to "brunch".
"hey hana, do you want to come round mine later for some afternom?"
by ost2life November 12, 2009
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