Pop

Meaning

Noun

• A social club and debating society at Eton College.
• The body of college prefects.
• A popular classical music concert.

Origin

• Origin uncertain. The OED suggests either from lollipop ("because the meetings were held in the rooms of Mrs Hatton, who kept the lollipop shop"), or from Latin popīna. The second sense derives from the first.
• Shortened from popular (concert).