Originally, this was a dismissive nuclear reply to someone, suggesting that they leave you alone. Mainstream use has shortened the phrase from “Go lick Jim’s asshole; he likes that” to simply Go lick Jim’s asshole (GLJA) and expanded the meaning to include variations of non-compliance or disbelief - no way, dafuq, pound sand, kick rocks, GTFO, STFU, etc.
While arguing with my sister, I asked if she wanted BK. She told me to go lick Jim’s asshole.
Go lick a dick – A truncated, vulgar insult often used to express contempt or disdain toward someone. The phrase suggests a crude sexual act and is intended to demean or humiliate the person being addressed. The phrase is offensive and generally considered inappropriate in most social settings. Unless your me