Top definition
that sharp stabbing pain you get between your eyes when you eat too much ice-cream too quickly.
oh man, i had a 4lt tub of choc-chip ice cream and now my brain is burnin!
by simon e kopp January 05, 2004
Happy St. Patties Day!
1. God's way of punishing you for eating too much ice cream at once.

2. The worst ten second headache you will ever have.
Kid: Aw fuck, ice cream headache!!

God: Haha, that's what ya get.
by ohbabybay July 20, 2009
Happy St. Patties Day!