http://www.investopedia.com/terms/s/swinglineloan.asp#axzz1mu3uA8yQDefinition of 'Swingline Loan'A loan that grants institutions access to large amounts of cash in order to cover possible shortfalls from other debt commitments.

Investopedia explains 'Swingline Loan'You could compare this to a line of credit or demand loan, as a swingline loan gives companies immediate access to large sums of cash on short notice.