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1.
A word that encompasses all that was awesome about the 80's, despite the fact that it was never actually used in the 80's. It can only be used when someone is very excited. Origin unknown, Luke Savage in Michigan takes credit. Your mom.
Did you see Carl spank your mom? That was HEAVY DOSAGE!
by SavageDosage June 26, 2010
 
2.
An extended amount of time with tiresome inlaws.
"
Yes mother Cratchet. The two weeks of vacation with you and dad, in the cottage, with your cats and birds was heavy dosage, despite the constant rain and occasional visits by the elderly neighbors.
by coe coe December 30, 2010
 
3.
An exclamation replacing words like: 'Awesome!'; 'Sweet!'; 'Rad!'; 'Bodacious!'; and, etc. Can also be used when you hit your thumb with a hammer or other painful events that require quick thinking when around children. Replaces all cuss words brilliantly. Its use started in the late 1990s but fizzled out until social media gave it a boost of HEAVY DOSAGE! Check out the official HEAVY DOSAGE! fan page on Facebook. Origin is Lee Higginbottom.
HEAVY DOSAGE! I just won the lottery!
You're so full of HEAVY DOSAGE!
by LeeHiggy July 21, 2010
 
4.
The process of consuming the appropriate quantity of cod liver oil for the upcoming colonoscopy
Man, this awful procedure is heavy dosage!
by coe coe December 30, 2010