Definition from Wiktionary, the free dictionary
sip + -y
sippy (plural sippies)
- A little sip; less than a cup of some particular drink
1999, Elaine May & Alan Arkin, Power Plays: Three One-Act Plays, ISBN 0573626987, page 70:
- Would you like a little water, Sue? SUE. Well, perhaps a sippy. (SUE squirts some water into a paper cup.)
2002, David McKnight, From Hunting to Drinking, ISBN 0415271517, page 108:
- By going to the canteen as soon as it opened some people hoped to cadge money, or one or more cans, or at least a 'sippy'.