What Are The Trashiest but Memorable Films You've Watched That Few Others Have Seen?

My list are as follows...

1. Bloodsucking Freaks (1976).

A Troma "classic" that looks like it was entirely filmed in someone's basement. Also known as "The Incredible Torture Show" and "Sardu: Master of the Screaming Virgins". Centers on a Grand Guignol play in NYC where actors are really being tortured and dismembered on stage - unknown to the audience.
Deliberately over the top and offensive, with naked women whipped and locked in cages, amputations, and brains being sucked through a straw!

2. Nightmares of a Damaged Brain (1981).

Also known as "Schizo" with make up effects incorrectly credited to Tom Savini. Was branded a "Video Nasty" in the UK.
Centers on a man inexplicably released from an institution, after having been committed as a boy for axing his father and his dominatrix mistress. He shares a link with a seemingly random boy who relishes in upsetting his family with disturbing pranks.
The film is disturbing in its horror and very grimey atmosphere.

3. 1990: The Bronx Warriors (1982).

Cheap Italian action exploitation film with campy and laughable NY gangs and featuring Vic Morrow and Fred Williamson. The protagonist - the tough gang leader - is named Trash! Possibly the stupidest character name ever and an apt description of the movie.

4. Boxing Helena (1993).

Directional debut of David Lynch's daughter. Focuses on Julian Sands surgeon character who's obsessed with a femme fatale who treats him like an insect. After she's accidentally runned over by a car outside his manison during an argument, he amputates her limbs and holds her hostage in order to "care for her". She gradually falls in love with him, and a positive turning point in their relationship is reached after she watches him have sex with a prostitute...*Spoiler* Has one of those "it was all a just a dream" endings...
Julian Sands gives an overwrought, shaky, and hilarious performance. Bill Paxton is some sort of club owning, player dude who announces he's "going to get laid" while dramatically donning his cool shades.

5. Blood-Feast (1963).

The Plan 9 From Outer Space of Splatter Films and also well known of being the first of its kind. Still have never meet anyone else who's actually seen it. Very gory, cheap, and hilarious in its badness.