An orgasm for your head delivered by a "Headgasm" scalp massager. Only the best feeling in the world. Comparable to the feeling of a cold shiver down your spine, but on the top of your head.
by joell86 September 01, 2010
by Facehole19843422 May 04, 2009
A momentary ADHD moment in your head where piles loads of good ideas over each other, lasting for a minute or two; usually when planning something one is overly excited about
by thelitttleone August 03, 2017