Google ScissorVixens.

When two females vaginas grind together, such as the art of making out. Privates kissing each other.

A Lesbian sex act where two partners interlock their spread legs (like two pairs of scissors) and grind their vulvae together to stimulate each other's clitoris to orgasm.

Basically when a woman squeezes a guy tightly between her thighs making it hard for him to breathe. It's basically like a wrestling hold. The woman applies pressure to her victim once she has her thighs wrapped around her victim's body. There are a couple of different types of scissors like head scissors, body scissors, reversed head scissors, figure four, etc. Xenia Onatopp is a well known character known for scissoring her victims to death between her thighs in the James Bond movie Goldeneye. Scissoring can also refer to lesbian sex. Also note that women can scissor women or men scissoring women, etc etc.

Something that most lesbians don't really do but is frequently found in girl-on-girl porn.

When a woman has sex with a man who is so small that he can't really penetrate her.

two women engaged in an act of tribadism: Usually laying down, they straddle each other half ways, rubbing cunts together.