The most common and most likely answer to this crossword clue is the 5 letter word SNASH
S
N
A
S
H
More clues leading to the result SNASH
Buddy explains!
The straight part
We know that "Rab C’s abuse" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case rab c’s abuse = snash.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does SNASH mean?
SNASH noun- Verbal abuse; insolence; guff.
- To talk impudently.