A combination of "Confused" and "Puzzled" with the same meaning as both. If said confidently enough, people tend to either not notice it, or consider it a real word.

confused + puzzled + -lated?

confuzzled with a '-lated' added on the end for fun.

the state of one not in understanding of one else.

A combination of being confused and puzzled, thus being twice as confused or puzzled as you would be normally.

synonym to confused, but the best way of writing it. If you are cool, you write it like this.

a combination of the words confuse and puzzle meaning frustrated and confused