when a bit of semen is "lost' after a withdrawal ejaculation, and dries on skin. Later when touched or brushed, it crackles like the sound of popcorn popping, and "flakes" off.
"Dude, in the morning when I opened my eyes, I saw she totally had
spunkflakes on her chin."
to douse ones partner with semen usually concentrating on the breasts and face region. Etiquette usually allows the area to be requested by the receptacle.
"Spunkulate me you sexy bastard"
"Where would you like to be spunkulated tonight?"
"I loved you spunkulating me last night, it was horny as fuck"