Extra strong; very high quality.
Designating extreme or hardcore pornography.
To delete; to cross out, especially to conceal or suggest vulgar language.
Triple X syndrome.
An indicator of hazard or poison.
Traditional brewer's mark for barrels of extra strong beer—extended to other alcoholic beverages and other products having an extra strong dimension (varying from laundry soap to pornography).
Having an extreme dedication to a certain activity.
Particularly intense; thrillingly dangerous or erratic; desirably violent in appearance; pleasing or "cool" due to intensity or danger.
Resistant to change.
Depicting penetration and abnormal sexual activity.
Obscene or explicit.
Faster or more intense than the regular style.
Outlaw country.
Jungle.
Gangsta rap.
Broken bricks, stone and/or other aggregate used as foundations, especially in road and path laying.
Hardcore punk.
Hardcore techno.