I read a New York Times review of Jurassic World where they called the movie "galumphing franchise reboot" and decided to look up the word, as I didn't remember it from Lewis Carroll’s book. Lewis Carroll invented many fun words, including "chortle".
Here is a great Oxford Dictionary article on this and other fun words. An excerpt about the portmanteaus of today:
The portmanteau today
Today there are numerous portmanteaus in the English language and the act of portmanteau-ing (yes, it’s a verb too) has become fairly linguistically productive. Some common and well-known portmanteaus include:
smog: smoke+fog Obamacare: Obama+healthcare infomercial: information+commercial jeggings: jeans+leggings breathalyzer: breath+analyzer Oxbridge: Oxford+Cambridge bromance: ‘bro’+romance