What is Sperm Whale?
1.
A fat slut, somone with a loose snatch! see also; Sperm bank
that gemma has slept had more prick then an antique dart board! shes a proper sperm whale!
See
2.
A man with large genitals and/or is capable of ejaculating quantities of semen after an orgasm.
Wow honey, you are a total sperm whale! It's guys like you that make me happy!
3.
A girl gives a guy fellatio and he comes in her mouth. Before she swallows he shoots her in the head, causing the jizz to eject from her head similar to that of a sperm whale.
Dude #1 "Watching Free Willy reminds me of the time I sperm whaled that ho"
Dude #2 "Boy, you are one sick fuck"
See