To don a condom. In other words, to put on a condom.
1. That bitch wouldn't let me fuck her until I dondomed.

2. If we are going to have sex in a few minutes, I should dondom now.
by Alex and Drew September 2, 2005
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A dildo-like apparatus which fits around the penis that is primarily used for increasing the length and girth of the penis, as well as for the prevention of venarial disease and pregnancy
Raul, having a penis of unusually small size, thought it would be appropriate to use a dondom to fuck Secretia.
by Dr. Nutsack October 6, 2007
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