What does “flustrated” mean, and is it a word?

What does the flustrated mean? Is it even a word? I am using Lingea Lexicon and it doesn’t know this word, but the Internet is full of it.

I find myself getting mad at people for using it both in English and in my own language (Czech), because if it actually has a meaning, I am afraid that those who use it doesn't even know it and use it with the meaning of frustrated, which is wrong.

I dug into it a while back, which only deepened my opinion about people who use it; see Urban Dictionary: flustrated.

Solution 1:

Certainly flustrated “is a word”, although it does not appear to be especially well thought of. The OED reports that the verb flustrate has been used for more than 300 years; it simply means fluster.

Here’s one amusing citation:

• 1876 Mrs. Oliphant Curate in Charge (ed. 5) II. iv. 100 — The head of the college was slightly flustrated, if such a vulgar word can be used of such a sublime person.

It is, however, marked vulgar or jocular — as so too is flustration (originally sometimes spelled flusteration), which has been around nearly as long and is reported to mean:

The condition of being flustered; ‘fluster’, agitation.

I would probably avoid using flustrate and its inflected and derived forms in formal contexts unless I were trying to convey a folksy, jocular, or ironic feel, such as in reported speech. But I wouldn’t let it confusticate or bebother me, either.

Solution 2:

It is a jocular blend of fluster and frustated.