It is funny to note that all three of my kids have begun counting this way, only in French: un, deux, trois, cinq, huit... They have all felt that 4, 6, and 7 were somehow not that important, at least not at first. After neuf and dix have been tack on, 6 is usually the next one to be accepted in the ranks, and 7 the last. :P
Sprout's favorite adjective of the moment is "mega" with especially special things being "super mega."
Being out of touch with anglophone (and francophone, for that matter) slang, I ask you is this perhaps the current equivalent of "rad" / "awesome" / "wicked"?