No, it is a nonsense exclamation used instead of saying something vulgar. You use it whenever you might use another exclamation, which means you could use it to emphasize a sentence when you feel something is nonsense, such as "Pshaw, that's a dumb thing to say."
Yes, "pshaw" is a slang term that is used to express disbelief or dismissal of something as nonsense or trivial. It is often used to show annoyance or frustration with what someone is saying.
The term "baloney" emerged in the 1950s as slang for nonsense or foolishness. It likely derives from the idea that bologna sausage (or baloney) is made up of various mixed meats, hence something that is a mixture of different things and therefore nonsensical.
1930s slang included terms like "cat's meow" (great), "bee's knees" (excellent), and "tomato" (attractive woman). Other popular phrases were "applesauce" (nonsense) and "phonus balonus" (absurd). These slang terms were commonly used in America during the 1930s.
No, "diss" is not an idiom. It is a slang term meaning to disrespect or insult someone verbally. Idioms are phrases or expressions that have a figurative meaning different from their literal meaning.
Swell means to grow bigger, as in 'the swell of the ocean' or 'I could see his chest swell with pride' or, in musical terms, 'the swell of the orchestra' as it grows louder. It is also used as a slang term to mean 'good'.
Nonsense in Chavacano can be translated as "sin sentido."
The term "baloney" emerged in the 1950s as slang for nonsense or foolishness. It likely derives from the idea that bologna sausage (or baloney) is made up of various mixed meats, hence something that is a mixture of different things and therefore nonsensical.
horse feathers means nonsense or something negligible
Humbug!
pshaw
havering is scottish slang for chatting aimlessly havering is scottish slang for chatting aimlessly
Doc Adams uses it a lot on the old TV show Gunsmoke. he normally uses it when some one disagrees with what he says, its his express of irritation, disapproval, contempt, or disbelief. it is spelt pshaw, Doc says "oh pshaw, the "P" is silent
Pshaw! Yeah it is!
It appears to be a nonsense word, perhaps slang, with no more meaning than is put to it.
It is a slang word used to mean that some statement is foolish or nonsense.
An idiom is a phrase that seems to be nonsense until you know the definition. Redonkulous is a slang word.
Literally means "testicles", also used to mean "nonsense".
A "blethering skite" is, in Scottish slang, a person who babbles foolishly or speaks a lot of nonsense. For more Scottish slang, see this page: http://www.rampantscotland.com/parliamo/blparliamo_men.htm