A Canadian bidding war broke out over the 22-pound crustacean, which was caught off the coast of New Brunswick.
Now, the owner of the fish store selling the lobster has had a change of heart.
Denis Breau says he's not selling Big Dee-Dee.
Instead, he's decided to donate the 100-year-old lobster to a marine science center to live out the rest of its days.
Bidding for Big Dee-Dee had hit $5,000 from a group which wanted to serve the giant lobster at a banquet.