(idiomatic, vulgar, slang) To ejaculate, cum, inseminate, or defecate.
1997, Penthouse International, Letters to Penthouse VII: Celebrate the Rites of Passion, [http://books.google.com/books?id=frYAkqFhGrQC&pg=PT42&dq=dumped+my+load+cum&hl=en&sa=X&ei=pe1zT6mMHMjC2wXA0LjmDg&ved=0CD8Q6AEwAw link]
No comments yet — say something.
Add your own interpretation of "dump one's load".
Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.