It often relates to music that is extremely sexual, such as pornrap.
Instead it relates to sexual hardcore rock/metal etc.

Mercury retrograde is the act of taking a shit whilst mooning one or more human beings. Your day can typically being going well, according to your horoscope, until you are forced into witnessing Mercury retrograde. Performing Mercury retrograde will often speed the astrological cycle forward for the individual performing the Mercury retrograde, bringing about happy and fruitful times to come.

Cumcore is a stylistic evolution of normcore. Influenced by the Covid pandemic and UK government advisor Dominic Cummings. The main ethos is "inappropriately dressed" which has been a main stay of Cummings Pre Pandemic but has become main stream during lockdown when the population were advised to work from home.
Slouchy ill fitting sports wear with or without stains, paired with beanie hat or just pyjamas.

When during any sexual act be it masturbation or intercourse, the climax and the resulting orgasm are repeated a second time immediately after the first. Often a result of great sex or a good nut.