verpeilt

'Verpeilt' is the past participle of the colloquial verb 'verpeilen', which Wiktionary glosses as 'to fail to manage, to get muddled, to forget'. The underlying verb 'peilen' comes from nautical language (to take a bearing or fix a position); someone who has 'sich verpeilt' has figuratively taken the wrong bearing. Today the word is colloquial and youth-slang for a scatterbrained, disorganised or absent-minded person or state.