1 definition by massivemanner

Half calf can be one of two things. One thing can be when you are trying to cut back on straight caffiene coffee so you get half decaffe half regular or when your penis has half a boner but its not all the way there , so its also half soft.
Mom:yeah ive been having way to much regular coffee lately
Son: why dont u get a half calf?

or

I wanted her to keep sucking me off but i couldnt because i only had a fucking half calf after i came into her mouth!
by massivemanner July 8, 2009
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