To kid, prank, joke.
To say something that is not meant to be taken seriously.
(procrastinate, fool around, behave immaturely): bowdlerization of fuck around
To joke around, to waste time
To make nonsense of;
To attempt to dismiss as nonsense; to ignore or belittle the significance of something; to render unimportant or puny.
A type of poetry that contains strange or surreal ideas, as, for example, that written by Edward Lear.
That which is silly, illogical and lacks any meaning, reason or value; that which does not make sense.
Something foolish.
Letters or words, in writing or speech, that have no meaning or pattern or seem to have no meaning.
An untrue statement.
A damaged DNA sequence whose products are not biologically active, that is, that does nothing.
Resulting from the substitution of a nucleotide in a sense codon, causing it to become a stop codon (not coding for an amino-acid).
Nonsensical.
An emphatic rejection of something one has just heard and does not believe or agree with.