To
unzip your fly and expose your genitals to someone as a
sick joke,especially the male genitals. Also,as a noun,the exposed penis.
Modeled on moon used to mean exposing the bare rump.
Kenny,Kevin,Jim,Jamie,Matt,Matt,Robert,Bill,Tom,Uriah,
Harun,Harold,Harvey,Hayden,Jason,Ulysees,Fargo and Theo all enjoy
sunning people. Such jerks and sickos!
"Oh,come on,little boy! We're not sunning you! We're only showing you where piss comes from!" exclaimed football jocks David,Greg,and Mel,as they unzipped their flies and exposed their
penes,or suns. They really were sunning the little boy.