al tuntún 40
Act sloppy, not think about it, careless. It may be an onomatopoeia; in Basque is a drum (shockproof) is also foolish, and perhaps comes from the vulgar latin ad vultum tuum ("to bulk, [bad done] in your face). See do something the tuntun, tun, https: //www. meaning. org/Basque/tuntun. htm