From WordNet (r) 3.0 (2006) [wn]:
salty
adj 1: engagingly stimulating or provocative; "a piquant wit";
"salty language" [syn: piquant, salty]
2: containing or filled with salt; "salt water" [ant: fresh,
sweet]
3: one of the four basic taste sensations; like the taste of sea
water
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Salty \Salt"y\ (s[add]lt"[y^]), a.
1. Containing salt; tasting of salt; saltish; as, the salty
sea; the potatoes are too salty.
[1913 Webster + PJC]
2. Interesting and witty; piquant; -- of discourse.
[PJC]
3. Racy; sexually suggestive; -- of discourse.
[PJC]