infra dignitatem

infra dignitatem; infra dig. Beneath the dignity [of someone]. Undignified. The phrase is used to indicate that a suggested or contemplated act does not befit one's character or standing. Some people shorten the phrase to infra dig by those who know.
Found on http://www.wordinfo.info/words/index/info/view_unit/3471/3

Infra Dignitatem

Infra dignitatem is Latin for beneth one's dignity; unbecoming
Found on http://www.probertencyclopaedia.com/YM.HTM
No exact match found