SLANG: a type of language consisting of words and phrases that are regarded as very informal, are more common in speech than writing, and are typically restricted to a particular context or group of people.
Especially the vernacular,
Like pizazz and balderdash;
Such words are quite spectacular.
Gadzooks has long been dead
And other words are dying.
Lost are darn and drat it,
In desuetude they are lying.
scallywag, twerp and wally,
Scoundrel, bounder, cad,
Have passed away and gone,
Their day they all have had.
No more nincompoops or rotters,
They rolled sweetly off the tongue.
So sad to see their passing,
No more we’ll hear them sung.
As for pillocks and rapscallions,
They’ve all died and gone to heaven,
Where they can still be rascals,
While awaiting Armageddon.