rock scorpion

Noun

Meaning

(slang, dated) A resident of Gibraltar.
Synonym: scorp

Any of several species of scorpions:
Hadogenes troglodytes (flat rock scorpion), of South Africa

Urodacus manicatus (black rock scorpion), of Australia

Hadogenes gunningi (Gunning's rock scorpion), of South Africa

Source: en.wiktionary.org