Green’s Dictionary of Slang

1. vtr. to cast opprobrium on someone.

1934

C.S. Johnson Shadow of the Plantation 81: ‘His mamma jest talked ’bout her [...] She tried to ‘scandalize’ her name’.

2. (US) vi. to behave badly.

1994

R.P. McNamara Times Square Hustler 89: Crack-heads, man, they be scandalizin’ theyself chasin’ the pipe. I don’t do that.