Looks like he's indicating a small horse or a large donkey length wise - but it's the girth that will get you. Either way he does look like he's had quite enough of whatever it was.
Speaking of which, enough IS enough - it's time to quit cosigning that treasonous loser Don Snoreleone (so hilarious after years of calling Biden Sleepy Joe - as usual, every single accusation turns out to be a confession. Every. Single. One.)