Personal Trainer Uses 'Beefy' Motivational Lingo

~ A Prime Cut of Japan's Famous Wagyu Beef ~
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Today I heard something funny at the gym. A personal trainer was trying to motivate his female client to give a little more 'Oomph' to her workout. The following was what I overheard.
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"Come on! Push Woman! Hold it... hold it... Good. I'll show you that underneath is some Grade 'A' Wagyu Beef!"
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I tried so hard to contain my giggles. They were at arm's length, training on the abs machine. I wonder how the lady took the trainer's motivational lingo? Does she even know what is wagyu beef? If the trainer had said that to me, I would have been so discouraged man... imagine all the hard work on the abs machine just so I could get 'marbled unsaturated fat' ? That trainer seriously needs to revise his motivational vocabulary.