You take your balls and lay them gently in her mouth. You then lay your penis up her face towards her forehead. She then makes noises such as a seal would make, which causes you to ejaculate.
Robert: Hey Adam I heard you had a great experience with that seal cannon yesterday. How did that go?
Adam: Oh Robert, it was amazing! I came like a cannon shooting off.
Adam: Oh Robert, it was amazing! I came like a cannon shooting off.
by Doc Starr June 8, 2016
Get the Seal Cannonmug.