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2.
Having an erection or hard-on caused by taking Viagra.
Could last several hours.
"C'mon babe- we have to screw now! I took my pill a half hour ago and now I have a giant Viagron!"
by stenro April 11, 2006
 
1.
A hard-on produced or facilitated by Viagra, or any other such prescription drug for "erectile dysfunction." Viagr-ons are different from naturally-occurring erections in that they are more easily attained and don't require the same amount of genuine sexual stimulation. Also, they tend to last longer and throb more intensely.
I wasn't really into (her/him), but I had a total Viagr-on, so I figured, "What the Hell?"

by Greg ONeill December 07, 2006