oniony

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.

Flavoured with onions.

No more will the messenger boy, the rounder, or the girl about town be able to indulge in the oniony hamburger, the last year’s chicken sandwich, or any of the other edibles and indigestibles furnished by the wheeled commissaries.

In a cool, colonial dining room overlooking the Malacca river, he demonstrates three such recipes: a mellow, mushroomy chicken curry (ayam pong the), a fiery okra salad (sambal bendeh), and – a personal favourite – a spicy, oniony shrimp-paste omelette (cincalock omelette).

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.

... it only took a little while for someone to point out this distinctly Oniony headline which appeared on the FARS^([sic]) website recently. "Gallup Poll: Rural Whites Prefer Ahmadinejad to Obama." Well, it turns out the headline and full article were pulled from The Onion and ran as a FARS news story.

Alternative form of oniony (“resembling the satirical news website The Onion”).