Usage patterns
〈人〉に小遣いをもらうto receive pocket money from someone
I get an allowance from my parents every month.
小遣いを使うto spend one's pocket money
I spent all my allowance on games.
小遣いをためるto save up one's pocket money
I'm saving up my allowance to buy a bicycle.
小遣いが足りないto not have enough pocket money
I don't have enough allowance this month.