solo pound
n.— «The report also coined the term “solo pound” to describe the specific areas where people living alone spend their money. The proportion of income spent by single-person households on alcohol, tobacco and recreational drugs is noticeably higher than for those living with others. The same is true, rather more predictably, for spending on gas and electricity and on going out in the evening.» —“Single-minded firms go chasing the solo pound” by Matthew Goodman Times (London, England) Oct. 30, 2005. (source: Double-Tongued Dictionary)