Nosh Pit 

Similar to a mosh pit, a nosh pit is a gathering of homosexual men engaging in sexual activity, mainly oral and can often involve violent undertones.

I havent seen him for ages, i heard he got involved in some nosh pit the other week

Nosh Pit by DasWunderkind November 28, 2009

Nosh pit 

The crowd of quietly rowdy “mega fans” who travel across the globe to cheer on the Eurovision Song Contest. They are usually bald, bearded and clap with their palms

I loved the Swedish song of 2016, it went mental in the nosh pit.

Nosh pit by grimola February 8, 2019