try on for size

try on for size (third-person singular simple present tries on for size, present participle trying on for size, simple past and past participle tried on for size)

1. (transitive, literally) To test an item of clothing by wearing it, to determine if it is the correct size.
2. (transitive, figuratively) To test anything for suitability.
3. (transitive, figuratively) To ponder or consider an idea.
4. (transitive, figuratively, chiefly used in the imperative) To receive an imminent attack.
   • 1999, Mona the Vampire, "The X-Change Student" (season 1, episode 6a):

     Mona: Try this vampire bolt on for size!

• try for size (UK)

• “try something on for size”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “try something on for size”, in Collins English Dictionary.