Not something Beonce or Ffergie would use but sounds like they should
argillaceous
PRONUNCIATION:(ahr-juh-LAY-shuhs)
MEANING:adjective: Made of, resembling, or relating to clay: clayey.
ETYMOLOGY:From Latin argilla (clay). Ultimately from the Indo-European root arg- (to shine; white), that is also the source of words such as argentine (silvery) and argue (from Latin arguere, to make clear).
USAGE:"But unlike many family movies, [the movie Akeelah and the Bee] has moments of pulchritude while showing no traces of argillaceous feet."
Ruthe Stein; Sweetly entertaining 'Bee' Takes Fresh Approach to Spelling It Out; San Francisco Chronicle; Apr 28, 2006.
PRONUNCIATION:(ahr-juh-LAY-shuhs)
MEANING:adjective: Made of, resembling, or relating to clay: clayey.
ETYMOLOGY:From Latin argilla (clay). Ultimately from the Indo-European root arg- (to shine; white), that is also the source of words such as argentine (silvery) and argue (from Latin arguere, to make clear).
USAGE:"But unlike many family movies, [the movie Akeelah and the Bee] has moments of pulchritude while showing no traces of argillaceous feet."
Ruthe Stein; Sweetly entertaining 'Bee' Takes Fresh Approach to Spelling It Out; San Francisco Chronicle; Apr 28, 2006.