tush, adj. — Green’s Dictionary of Slang

tush adj.

[SE colloq. use of tush, as n., meaning a wealthy light-skinned black person]

(US black)

1. aggressive, threatening.

1933		Eve. Sun (Baltimore, MD) 9 Dec. 31/5: Tush — dangerous; belligerent.
1949		Monteleone Criminal Sl. (rev. edn).

2. classy, well-mannered, sophisticated.

1960, 1975

Wentworth & Flexner DAS.