to welsh, to obtain money without any expectation of being able to pay or intention of paying.

n. A staff of office signifying authority. Its form, that of a heavy club, indicates its original purpose and use in dissuading from dissent.

sb. mace, club, sceptrumVariants: mas, pl., masis, macyssEtymology: Anglo-French mace (F. masse ); cp. Low Latin massa; Italian mazza; Late Latin matia; Latin matea (found in mateola )
to sponge, swindle, or beg, in a polite way: “give it him (a shopkeeper) on the mace ,” i.e., obtain goods on credit and never pay for them; also termed “striking the mace.”