(Not to be confused with the ice cream from Wendy's restaurants)
The act of giving fellatio with a scoop of ice cream in each cheek. Flavor preference is up to the giver of the frosty top.
"Julia gave me a frostytop for like an hour yesterday, and my dick practically froze off!"
The act of putting one's ball sack on a bag of ice or otherwise cooling the testes to shrivel up resembling a "frosty potato," which then has oral stimulation provided by inserting the whole scrotum into preferred sexual partners mouth.
Whilst your partner snoozes, you give your penis a tug and finish on her eyes. Effectively glueing them together, resulting in a frosty morning when she wakes up.
Ahh I'm having such a terribleday. My boyfriend gave me a frosty morning and it took me twenty minutes to clean it up.