The phrase "a slang phrase" is correct and usable in written English.
It can be used when referring to a specific expression or term that is informal and commonly used in casual conversation.
Example: "The term 'lit' is a slang phrase that describes something exciting or excellent."
Alternatives: "an informal expression" or "a colloquial term".
Here in Berlin for the film festival, I came across a slang phrase for the city I didn't know: Deutsche Brooklyn.
As for mirth — that came from all corners, especially directed at the inclusion of "muffin top," as both a noun referring to the better, non-stump half of the breakfast cake, and as a slang phrase describing "a roll of flesh which hangs visibly over a person's (esp. a woman's) tight-fitting waistband".
"In Like Flynn": A slang phrase meaning having quickly or easily gained access as desired (Wikipedia).
"He addressed the fact that he used a slang phrase, he did not address the fact that he used women as a punchline," Shields said.
"Out Like Scout": A slang phrase meaning get out like a girl scout who just sold a ton of cookies (I totally made this phrase up because I wanted to rhyme like #5).
It is an old Cockney slang phrase, implying a queerness or madness so extreme as to subvert nature, since could any notion be more bizarre than that of a clockwork orange?
In several interviews, he has explained part of it as a reference to the Southern slang phrase "gettin' out on the good foot", while describing the entire moniker as an indication of maturity, noting it as "my real grown-man persona" and "like my Luke-Skywalker-becoming-a-Jedi persona.
But sardonic black humor has taken root in mass culture much the way selective serotonin reuptake inhibitors (S.S.R.I.'s) made their way into medicine cabinets and the way the slang phrase "I'm good" became a widely used synonym for "no thank you".
The slang phrase meaning "to inform, betray" used to be to drop a dime.
The slang phrase, which originated in the favelas, Rio de Janeiro's slums, can refer to an imminent confrontation or, perversely, to a party that is going strong.
"Loose Rap", which is titled after the slang phrase of the same name, dismisses romantic admirers who use corny pick-up lines.
