Of unknown etymology. Originally U.S. Army Air Corps slang; origins among cadets in Texas suggest a possible connection to Mexican Spanish rancho (see ranch), which had connotations of animal filth by 1864.
- Smutty; indecent.
- Sexually seductive.
- Very low-class; inferior; inadequate. (Can we add an example for this sense?)
- With dishonorable, base and vulgar expression.
- See also Thesaurus:obscene
with dishonorable, base and vulgar expression