salty dog

From the salt of the sea. Compare old salt and seadog.

Sexual sense may be due to association of sailors with sexual promiscuity, or may be separate development, salty (“spicy”) and dog both suggesting promiscuity.

salty dog (plural salty dogs)

1. (US, Navy, Marines) An experienced sailor.
2. A sexually promiscuous man; a male sexual partner.

• (experienced sailor): old salt, sea dog
• (promiscuous man, sexual partner): See also Thesaurus:promiscuous man, Thesaurus:sexual partner

• old salt
• sea dog

From a greyhound (“gin and grapefruit juice cocktail”), plus salt, influenced by existing term.

salty dog (plural salty dogs)

1. A cocktail consisting of gin or vodka, grapefruit juice, and a salt rim.