When a girl stands above her partners chest, squats down, has a
bowel movement in the mouth of the partner all while pulling her arms
up and down maintaining an L position to
represent the pulling of a train horn. The partner in most instances usually makes a train horn like noise after she "pulls the horn".
Wow, me and sandy dow'mecock sure had
a crazy night. After doing it, me and her did a
poo doo ma
choochoo in my grandmothers bed...