jack-o-lantern
When you shove a flashlight up a girl’s pants and turn it on. It looks like a jack-o-lantern inside her. If you use a strobe light, it’s even more ridiculous.
My friend did a jack-o-lantern on his crush and she screamed.
My brother did a jack-o-lantern on his girlfriend and she got mad.
My cousin did a jack-o-lantern on his date and it was the worst.