oniony

adjective3

1. •
   Resembling an onion or onions, especially in terms of smell.

   • The leaves of the Salad leek possess a somewhat oniony taste and smell, and are extensively eaten raw as a relish. — 1910
2. •
   Flavoured with onions.
3. •
   Resembling or characteristic of the satirical news website The Onion.

   • Many of these submissions were deleted for not having “an oniony quality” (seeming more like satire than news, not just a funny title) or being from an unreliable news source. — 2019