ネタ

ねた
noun
material; topic; joke; sushi topping
1. material, topic, content
Source material for conversation, jokes, articles, or creative work.
(はなし)のネタが()きた。
I've run out of things to talk about.
ブログのネタを(さが)している。
I'm looking for material for my blog.
2. joke, gag, comedic material
A joke or comedic routine, especially in stand-up comedy or variety shows.
このネタ、面白(おもしろ)いでしょ?
This joke is funny, right?
3. sushi topping, ingredient
The fish or other topping on sushi (comes from reversing タネ).
この寿司屋(すしや)はネタが新鮮(しんせん)だ。
This sushi restaurant has fresh toppings.

VERSATILE SLANG TERM:
ネタ is derived from タネ ((たね)) reversed, a form of slang inversion common in Japanese.

COMMON USES:

Material/Topic (sense 1):

  • (はなし)のネタ: Something to talk about
  • 記事(きじ)のネタ: Material for an article
  • ネタバレ: Spoiler (lit. 'material revealed')
  • ネタ()れ: Running out of material

Comedy/Entertainment (sense 2):

  • 漫才(まんざい)のネタ: Manzai comedy routine
  • 鉄板(てっぱん)ネタ: Reliable joke (always gets laughs)
  • ネタを披露(ひろう)する: to perform a joke/routine

Sushi (sense 3):

  • ネタ: Sushi topping (fish, seafood, etc.)
  • (しゅん)のネタ: Seasonal sushi topping
  • シャリ: Sushi rice (paired with ネタ)

INTERNET USAGE:

  • ネタ画像(がぞう): Meme image
  • ネタツイート: Joke tweet
  • マジネタ: Serious topic (not a joke)

NOTE: In casual speech, ネタ often implies something entertaining or amusing, even when referring to 'material' or 'topics.'