Longman Dictionary of Contemporary English
lollipop lady
noun
EXAMPLES FROM CORPUS
▪ He says the crossing patrol has poor visibility because of parked cars and the lollipop lady has to weave in between stationary vehicles.
Wiktionary
lollipop lady
n. (context British English) A female school crossing attendant.
WordNet
lollipop lady
n. a woman hired to help children cross a road safely near a school [syn: lollipop woman]