noun
1.
a. : money allotted by a man to his wife, daughter, or sister for her personal expenses especially for clothes
this man provides pin money in plenty for his daughter — W.J.Weston
b. : money used or set aside for the purchase of incidentals : pocket money
selling … jam and things for pin money — Alice S. Rivoire
2. : a trifling sum of money
worked feverishly for what would look like pin money to modern … men — D.W.Maurer