Political cartoon by Rick McKee of The Augusta Chronicle in Augusta, Georgia published on 29 April 2011.
a gal - a girl, or a woman (English version of the French ‘une nana’)
a guy = a boy, or a man (English version of the French ‘un mec’)
barely (adv.) - used for emphasizing how small an amount is
to be on welfare – to receive money, care and/or help from the state (for people in need or unemployed)