Definition of pop goes the weasel in English English dictionary
an old British song for children. It begins: Half a pound of tuppenny rice,/Half a pound of treacle;/That's the way the money goes,/Pop goes the weasel! In the US, children also know this song, but the words are: Round and round the mulberry bush,/ the monkey chased the weasel/ The monkey said 'twas all in fun/ Pop goes the weasel!