1. preslug - Noun
2. preslug - Verb
preslug (plural preslugs)
(chemical engineering) A substance injected into water contaminated with oil to facilitate the subsequent process of recovering the oil from the water.
(nuclear engineering) To compress (fuel) into pellets before use.
To preprint on a form with automatically-generated individual identifying information.
(journalism) To give a title, header, or catchline before writing the piece.
Source: en.wiktionary.org