adj

• (obsolete) Having or showing good taste; tasteful.
  "These items will make an attractive and tasty display."
• (slang) Appealing; when applied to persons, sexually appealing.
  "Country fans probably remember Stu best for a tasty tune he wrote and recorded but didn't want released."
• (UK, informal) Skillful; highly competent.
• (UK, informal) Potentially violent.
  "I watched it all unfold live on Sky News. Ed Miliband was there, but so were the usual bunch of troublemakers and I, for one, was expecting it to kick off.¶ Sure enough, it all got a bit tasty in the afternoon at about the time I should have been polishing off my tinned tuna. Only there was no one about to dish out my grub.¶ They were all glued to the telly watching a gang of blokes wearing balaclavas smash the windows of a Porsche showroom in Park Lane."

noun

• (informal) Something tasty; a delicious article of food.
  "The mate had procured other tasties too, olives and such, for later in the evening."
• (Philippines, dated) a loaf of bread