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

• Lexulous
• Wordscraper
• Wordosaur

adj. superlative form of portly: most portly.

"The Daily News reports today that "For both candidates, Wall Street's investment and banking sectors have become among their portliest cash cows, contributing $9.5 million to Obama and $5.3 million to McCain so far.""