Green’s Dictionary of Slang

1. (US) vulgar, tasteless.

1995

Time 27 Mar. 62: A pair of funny, nobrow epics in which [...] he co-starred with an orangutan named Clyde [HDAS].

2. intellectually neutral, linked neither to ‘high’ nor ‘low’ culture.

2000

P. Halasz ‘Genuine Culture, Bogus Populism’ N.Y. Arts Mag. V:1 Jan. 🌐 Recently, the New Yorker argued that culture today is ‘nobrow,’ that distinctions between ‘highbrow’ and ‘lowbrow’ have disappeared.