This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

ad. in an obstreperous manner

In an obstreperous manner; loudly; clamorously; vociferously: as, to behave obstreperously.

ad. in manner that attracts attention

"Not many were out in front of netroots opposition to single payer advocacy all last year quite as obstreperously as Jane Hamsher and her strange bedwetter coalition."