English UK translation contains vulgar language for Sponge

Screenshot: http://i.imgur.com/TB7nU4O.jpg

Reproduction:

• Switch Minecraft language to "English (UK)"
• Join or create a creative-type world and open the inventory
• Hover over the Sponge block

Expected: Tooltip that says "Sponge"
Actual: Tooltip that says "I LOVE GAY PORNO"

Personal remarks: User-submitted data should never be trusted under any circumstances.