Noun
the outermost of the three gluteal muscles
Source: WordNetNick! Wait!” – Kyrian ‘Wait, my gluteus maximus. Vampire was shy of a few quarts of blood if he thought Nick had any intention of not going Casper on him.' – Nick. Sherrilyn Kenyon
The design, coupled with low or dropped handlebars, requires the rider to bend forward more, making use of stronger muscles (particularly the gluteus maximus ) and reducing air resistance at high speed. Source: Internet
The gluteus maximus has its origin between (and around) the iliac crest and the coccyx from where one part radiates into the iliotibial tract and the other stretches down to the gluteal tuberosity under the greater trochanter. Source: Internet