Donald Trump kicked off his&nbsp;17-day, definitely earned, absolutely, certainly, not-at-all-a-vacation&nbsp;over the weekend, billing it as a "work trip."But nobody's buying it -- well, at least not on late-night TV.&nbsp;So, while Trump takes&nbsp;swings at golf balls, Stephen Colbert and company took swings at the president."You&rsquo;ve got to give it to him &mdash; he's there to relax after months of grueling golf at Mar-a-Lago," Colbert quipped during Monday's "The Late Show."Colbert noted the president's staunch insistence that his extended vacay is in the name of professional duties, thank you very much:&nbsp;"This is not a vacation - meetings and calls!"&nbsp;Trump clarified in a tweet."Meetings and calls &mdash; wow,"&nbsp;Colbert said. "Trump has to do all that during vacation? Man, I would not&nbsp;want to work for&nbsp;Vladimir Putin!&nbsp;Tough boss."&nbsp;Coincidentally, Putin is also taking a vacation right now.&nbsp;"He&rsquo;s in Siberia putting on a snorkel and shooting fish with a spear gun," Colbert said. (This is real news.) "Though&nbsp;he later claimed the fish was killed by Ukrainian separatists."During his "Closer Look" segment, "Late Night"&nbsp;host Seth Meyers ribbed the&nbsp;vacation/not-vacation&nbsp;for its decidedly subpar destination choice.&nbsp;"Just in case you needed more proof that he&rsquo;s not really a billionaire, he takes a&nbsp;New Jersey vacation," the New York-based Meyers said, adding, "'New Jersey vacation'&nbsp;sounds like a slang term for a mafia hit job. 'Hey, what happened to Bobby?&nbsp;Let&rsquo;s just say he's taking a New Jersey vacation &mdash; in a landfill.'"Meyers made himself clear&nbsp;&mdash;&nbsp;he wasn't criticizing Trump for taking a little time off."I&rsquo;m criticizing him for being a lying hypocrite," he cracked.Meanwhile, as&nbsp;"The&nbsp;Tonight Show" host Jimmy Fallon pointed out, everyone seems to be forgetting who's really on vacation here.&nbsp;"President Trump is in the middle of his 17-day trip to his New Jersey golf course, but he says that it isn't a vacation,"&nbsp;Fallon said during Monday's show. "The staff of the White House said, 'For us it is. Never been happier.'"