I just got Sirloin while killing an elite and tried to sell it but it didn't disappear. Here is the copy and past of the 'event'.

Heaven's Voice: Battle Ender1876 vs Elite Fiery Shersher is complete.
08:39 Heaven's Voice: You received 221 experience.
08:39 Heaven's Voice: You received 17. Loot has been reduced, as your enemy was a lower level than you.
08:39 Heaven's Voice: Durability of the tool is decreased: {ITEM 29154,Ender1876,4fadf7fd-05b6-0303-ab79-7b898912ac62} -1 (11/30).
08:39 Heaven's Voice: Received: Carved Ham (1 pcs).
08:39 Heaven's Voice: You sold: Carved Ham (1 pcs). Received: 3.
08:39 Heaven's Voice: You sold: Carved Ham (1 pcs). Received: 3.
08:39 Heaven's Voice: You sold: Carved Ham (1 pcs). Received: 3.
08:39 Heaven's Voice: You sold: Carved Ham (1 pcs). Received: 3.
08:40 Heaven's Voice: You sold: Carved Ham (1 pcs). Received: 3.
08:40 Heaven's Voice: You sold: Carved Ham (1 pcs). Received: 3.
08:40 Heaven's Voice: You sold: Carved Ham (1 pcs). Received: 3.
08:40 Heaven's Voice: You sold: Carved Ham (1 pcs). Received: 3.
08:40 Heaven's Voice: You sold: Carved Ham (1 pcs). Received: 3.
08:40 Heaven's Voice: You sold: Carved Ham (1 pcs). Received: 3.
08:42 Heaven's Voice: Battle Seven Bridges of Shadan will start in {PERIOD 300}

Just thought i would let you guys know you can remove the extra 27 copper if you really want.