Green’s Dictionary of Slang

1. to save up $100.

1928

N.I. White Amer. Negro Folk-Songs 361: [reported from Durham, N.C., 1919] Sung by Negroes working on the railroad. He meant to get one hundred dollars saved up. [...] ‘I want to century just one more time.’.

2. to make $100.

1929

(con. WWI) H. Odum Wings on My Feet 16: I’m a gamblin’ man, can century that money, shootin’ for my honey.