"Under..." Namur trailed off, finger rubbing under his gills. "Huh. Hell if I know. 'S jus' what they say. Means when they start cuttin' y' up an' shit. Knock y' out so y' sleep through it usually. Anyway, 's gonna be fine. Docs're pirates an' that means they're good at workin' shit out on the fly if somethin' goes sideways."