If fizzy lifting drinks are par for saddling your horse
You might consider sawing Sea Biscuit off at the knees before
If people have a high opinion of themselves, they’re said to be on “their high horse.”
Aes is saying that if your horse (your ego) is so massive that you can’t mount it without the help of fizzy lifting drinks (the soda from Willy Wonka & The Chocolate Factory which makes you weightless), then you might consider downsizing your ego (sawing off Sea Biscuit (a famous racehorse) — at the knees).
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