slang A condom. Primarily heard in UK, Ireland. Remember, mate: only a fool doesn't wear a johnny on a one-night stand.In an effort to promote safe sexual practices, the student union began handing our rubber johnnies to everyone passing by.
Johnnie-come-lately
and JCL
n. someone?new to a situation or status. This Johnnie-come-lately doesn’t know what it was like in the old days.