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An intensely large, overbearing, and excessive amount of something. This may be something dreaded, considering that the word 'hell' is embedded in the word itself. Similar to crapload, shitload, motherload, etc. A load from hell.
Oh man, I have a hellload of Spanish homework to do tonight...looks like I'm going to be pulling an all-nighter. T_T

This is a hellload of food, I knew I should've just gotten a happy-meal.

You had better wash that hellload of dirty laundry!
by anu_dew2000 January 02, 2008
an expression of excitement, joy or amazement.

exclamation of praise .
combination of hell and loads
hellloads! that's full of awesomeness!
by primaverabebe December 11, 2010