An injurious and
obsolete term for
homosexual, gay person, mainly the passive one that should lift
the shirt lap by the sexual act. There is also 'shirtlifter'.
In British film 'Beautiful Thing',
the lad explains why his mother is angry: 'because I'm a queer,
a bender, a poufter, a knobshiner, a
brown hatter, a shirtflaplifter!'