In the French version, what you are hearing as "mes boues" is actually "mes boucs" (no difference in pronunciation).

It's like the captain or his lieutenants calling the rigging-skippers "me hearties" aboard a pirate ship, as in, "corne-de-bouc" (ram's horn--technically he's calling them rams), which is a slang and liikely derogatory if used by the honest seafaring, term for pirate, when giving them orders.

Everybody should read Tintin. You learns SO much from Capitaine Haddock's swearing!