The word 'dingbat' originally refers to to a character or symbol used in typesetting which gives an instruction to the printer. These should be removed before the text is published, but were occasionally left in by mistake. The character made no sense to non-typesetters and the association of "dingbat" with "nonsense" and "forgetfulness" carried over to describe people.
Julia's such a dingbat, I asked her to buy me yogurt and she got me cream.
This end of year report is riddled with inaccuracies. Looks like we've got a dingbat in the mix.
(sarchastic) Nice one Paul, a spectacular display of ding-battery.
(Noun) Being forced by circumstances to do something which you do not wish to do.
The word is from the German and means "compulsion to move"
The term is most frequently used to describe a strategy in chess whereby one player is forced to make a move they do not wish to make. It is also used more generally to describe any comparable situation.
Of course I lost! He knew my game plan from the start. Put me in zugzwang after zugzwang till he had me right where he wanted me.
I'm in a terrible zugzwang. Can you give me some advice?
(as verb/adj) This year's bonus has me zugzwanged with the tax man. If I declare it, I'll lose the lot.