Did your latest keynoter leave attendees with a case of katahara itai (Japanese for laughing so hard their tummies hurt)? Or, heaven forbid, did you have a nakkele at your banquet (A Tulu, India word for someone who licks the plate food is served on)? English is pretty limited when you start looking at all the words and phrases we don't yet have (check out the BBC for more). A guy named Adam Jacot de Boinod actually collected a bunch of phrases from other languages that have no English equivalent in his book, The Meaning Of Tingo - a collection of words and phrases from around the world.
And we won't even go into Albania's 27 different words for moustaches...