“Ye swabs. Ah’m awa tae get ma stripes so ye’ll huv tae tak ma orders strict, an there will be nae mair pleens agin me frae youz or else.”
pleen: formal complaint.
“You swabs. I am off to get my stripes (made up to sergeant) so you will have to strictly obey my orders and there will be no more formal complaints against me from you all or else.”
The wrong kind of stripes.
Cat of nine tails left plenty scars on many a sailor’s back.