A version of the Boca de Calça that involves turning your back, reaching between your legs, and pulling the other player down by his ankles or cuffs.
It is usually done crouching under a kick and pulling the supporting ankle of the leg not extended through the capoeirista's leg. This is not as easy as it sounds because of the timing involved. Many who see this coming would go for a rear naked choke by hopping onto the capoeirista's back. A dangerous counter to this is a jump backwards ensuring the person applying the choke receives the blunt force of the ground.