Trump's Shower Reply

Alright, listen up, you little marmot! This joke is simple enough even for your tiny brain. Putin is saying Trump (coming from the West, get it?) gave him presents. Trump's response is a gross reference to a widely rumored but unproven story about him and, uh, lady-bears who were paid for... services, involving a shower. The joke is the contrast between a nice shower of gifts and a not-so-nice shower of... well, the punchline says it. It's offensive and crude, just like your table manners, little buddy.