Slang – Abs Slang – Abs. Meaning – Stomach muscles. Abs is an abbreviation for abdominal muscles. A sit-up is an exercise performed in order to strengthen and tone your abs. Example: “I’ve been doing 200 sit-ups a day because I want to have awesome abs!” Share:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on Mastodon (Opens in new window) More from FunkyEnglish: In Slang abs exercise muscles Slang ← Previous Post Next Post →