Definition from Wiktionary, the free dictionary
gymslip (plural gymslips)
- A sleeveless tunic with a pleated skirt most commonly seen as part of a girl's school uniform.
1968, Alan Sharp, The wind shifts, page 203:
- I've seen this child in her gymslip and school blouse […]
2010, Jonathan Raban, Foreign Land: A Novel:
- She'd swapped the print dress for a plain white blouse and brown gymslip.
2013, Jane Howells, Leehurst Swan School: A Centenary History, page 16:
- Boarders wore navy pleated skirts with white blouses; day girls had brown gymslips, cream blouses and beige jumpers. Lisle stockings could be a nuisance, as were hats and gloves.