muscles up

Verb

muscle up (third-person singular simple present muscles up, present participle muscling up, simple past and past participle muscled up)

1. (intransitive, transitive) To train the muscles for increased size and strength.
   • We spent the summer trying to muscle up for football next term.
2. (intransitive) To force one's way into or through.
   • There are only about ten tables, so you'll probably have to wait — or just muscle up to the bar like everyone else.2007, Neil Schlecht, Spain for Dummies, page 470
3. (figuratively, intransitive, transitive) To make stronger or more powerful.
   • Churchill had again thwarted the American impulse to muscle up in the Pacific theater at the expense of the Atlantic[…]2007, Rick Atkinson, An Army at Dawn: The War in North Africa, 1942-1943, page 26