Malaprop in a sentence as a noun

Yes, fair enough -- in that case, I had to either choose a gender for one word or go with one of those malaprops like "they".

My mother was a child psychologist for 30 years and collected malaprops from the children she saw.

Normally a malaprop like this is benign, but this one reverses the meaning of the sentence in which it appears.

"All intensive purposes" is a malaprop, a specific language error that's almost never considered to be correct.

This is a surprisingly effective technique, but often results in some interesting mistakes that surface as malaprops.

Malaprop definitions

noun

the unintentional misuse of a word by confusion with one that sounds similar

See also: malapropism