The action of inserting ones genitals into a pvc pipe for sexual pleasure. Generally the PVC pipe has some form of synthetic vagina. Usually consisting of raw meat or Starches.
Hey bill, do you want to hang out tonight? I'm planning on getting some serious dithering in on my old pipe.
When someone you're dating is rude and disrespectful to you so realizing you'll probably be dumped sometime soon you abruptly end the relationship rejecting that person before he/she can reject you.
That gal treats me terribly breaking dates at last minute with lame excuses and ignoring me when we're at social functions so I'll be dumpering her today.
Pete chose to have dicks for fingers so he went out on Saturday night and Dingered Sarah on the dance floor. Sarah was rapt.
OR
Pete the Porn Star, chose to up his porn star game, by having his fingers replaced with dicks. That then allowed him to wear his Spiderman costume, go ahead with Dingering Jane, and live out his dreams of a full spidey web.