Based on the search results provided, there isn't a definitive list of the top 100 most used words and their definitions by mainstream media today. However, I can provide some insights into popular words and trends in media and language usage in 2025:

Trending Words and Phrases

1. Meta-verse: A virtual shared space created by the convergence of virtual and physical reality.

2. Gen AI: Short for Generative Artificial Intelligence, referring to AI systems that can create content.

3. Digital Nomad 2.0: Individuals leveraging global co-working hubs and advanced connectivity to work from anywhere.

4. Quiet Luxury: A trend emphasizing understated, high-quality products and experiences over flashy displays of wealth.

5. AI Fluency: The ability to effectively understand, use, and interact with AI technologies.

6. Climavore: A person following a diet tailored to mitigate climate impact, focusing on seasonal and local foods.

7. Neurodivergent Pride: A movement celebrating cognitive differences like ADHD and autism as strengths rather than deficits.

8. Biohacking: Practices aimed at optimizing physical and mental performance through technology and lifestyle changes.

9. Doomscroll Detox: Intentional breaks from consuming negative news online.

10. Eco-minimalism: A lifestyle trend combining sustainable practices with minimalist principles.

Popular Internet Abbreviations

• LOL: Laughing out loud
• ASAP: As soon as possible
• FYI: For your information
• IMO: In my opinion
• G2G: Got to go
• TTYL: Talk to you later

Slang Terms

• Bet: Agreement or confirmation
• Bussin': Really good or amazing
• Extra: Dramatic or over-the-top
• GOAT: Greatest Of All Time
• GRWM: Get Ready With Me (used for vlogs showing routines)

While this list doesn't cover all 100 top words, it provides a snapshot of language trends in media and popular culture in 2025. The focus seems to be on technology, sustainability, mental health, and evolving work cultures, reflecting broader societal shifts and concerns.