1 definition by Mantastic!
v. The act of recieving head and at the point of ejaculation you pull out and jam the head of your penis in/around the womans ...or mans... nose (as if trying to harpoon them). Causing the reciever to shreek with suprise usually sounding similar to a whale.
-"Oh man, did you see me sperm whaling that chick at the party last night?"
-"You were drunk and crying in the corner the whole time..."
-"You should have heard this hoe when i sperm whaled her last night. She was all like ....Murahrwarahkdfdlkaaaanehh.
-"You were drunk and crying in the corner the whole time..."
-"You should have heard this hoe when i sperm whaled her last night. She was all like ....Murahrwarahkdfdlkaaaanehh.
by Mantastic! December 5, 2009