When someone has travelled overseas and, upon returning, can speak of nothing else.
They are at their worst when in the company of fellow travel wankers. The conversation quickly deteriorates into an excruciating game of oneupmanship.
Karl: well, when I did that Thailand Contiki tour......
Mitch: Seriously Karl, travelling Contiki can't even be considered real travelling. When I went to Laos....
Jimmy: Fuck, Karl and Mitch have become the biggest travel wankers since they got back.