Bloodsucker

[Sarah]

Any animal that sucks blood; esp., the leech (Hirudomedicinalis), and related species.

[Magaret]

An insect or other animal that sucks blood, especially a leech or a mosquito.

[Tanya Shivari]

When you have sex with a girl on her [period] and make her suck the [blood] [off your dick] afterwards

[Lanell]

A frustrated woman, who has trouble opening her heart to a man. She spends her whole life looking for the one and when she finally decides to open up to someone, she sucks on them so hard, that it becomes uncomfortable for the other person; she will become over-attached.

Her beliefs are often orthodox and rigid. She believes that only way to relate to a man is by a serious relationship, followed by at least 30-year-long marriage, and if she doesnt succeed with the one, she will blame them and will never be able to talk to them kindly and openly again.

She hates people who have [casual sex], and she clearly refuses this possibility for herself, which will keep her frustrated and nervous. An [open relationship] is a foreign language to her. Typically, she will call people, who enjoy casual sex a [fuckboi] or a bitch.

After the act of sucking onto the one, the one will usually either stay with the bloodsucker (because he is afraid to hurt her feelings) and become bored and unhappy, or he will choose to leave the bloodsucker, who will after that become even more frustred, reserved and hateful towards men.

Typical examples of frustrated expressions of [bloodsuckers] can be found in the top definitions of
words fuckboi or [mansplainer].