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Mom is nervous. That makes sense. You see, Dr. Sandra Lee, the erstwhile Dr. Pimple Popper, is about to do her favorite thing — slice into a human and squeeze out the contents of, well, stuff.

This stuff is a growth of fat cells, which makes sense, because it looks like lard spilling out of there.

RELATED: This guy’s cyst looks like an extra knee cap.

This lipoma was particularly nasty, as it held on to the patient, prompting Dr. Lee to wonder, “Is there a hold on song?”

There’s Frankie Valli and the Four Seasons’ Lets Hang On, but that doesn’t see like an appropriate song, does it?

Here’s how Dr. Lee explains what’s going on, on Youtube:

A lipoma is slow-growing, benign growth of fat cells. It is contained in a thin, fibrous capsule and found right under the skin. A lipoma is typically not tender and moves around easily with slight pressure. A lipoma is not cancerous and treatment generally is not necessary. There is also a condition called familial lipomatosus, where people develop multiple lipomas, especially on the arms and legs, and other family members have these growths as well. If the lipoma is on a pressure-bearing area, it may create discomfort and this is when people seek removal. People also request removal because they don’t like the appearance of these bumps. Often a small incision can be made over the lipoma and they can be “popped” out easily. This is a simple in-office surgical procedure under local anesthesia.