The "tiny hands" joke isn´t funny because Donald Trump has tiny hands, no one cares about that or if it is true.
The part that makes the joke funny, is its origins. In the 80s journalist was writing a story about Donald and mentioned his small hands in it. But Donald Trump is so insecure that even 10 years later he kept sending cut off pictures of himself from magazines to the author, with his hands circled with a marker, to prove that his hands werent small. The fact that the marker was gold coloured was a cherry on top.
The sheer stupidity of this entire thing is what makes the (though overplayed) joke funny.
Some random source with not that many details. https://abcnews.go.com/Politics/history-donald-trump-small-h...
