crud buildup
1Fouling — This article is about fouling in engineering. For uses of the term foul outside technology, see Foul (disambiguation). Not to be confused with fowling. Heat exchanger in a steam power plant, fouled by macro fouling …
2Cue sports — Billiards redirects here. For other uses, see Billiard (disambiguation). Cue sports Engraving from Charles Cotton s 1674 book, The Compleat Gamester Highest governing body World Confederation of Billiard Sports First played 15th …
3keyboard plaque — (KEE.bohrd plak) n. The dirt, dust, and other grime that accumulates on computer keyboards. Example Citation: Some of CompuClean s customers even turn to them for other services above and beyond the level of keyboard plaque, even though cleaning… …
