Similar to clog; can be used to describe disgusting things like Disney's the Santa Clause

The engaging of sexual intercourse (anal or vaginal) from behind.

In the context of online gaming "clug" is synonymous with rape, pwn, skull fuck, and other terms that declare superiority over other gamers.

When two people, be they related or otherwise, attempt to hug but instead knock their heads together, in extreme cases, female victims of the clug yell loudly further embarrasing any male clugger.

Clug= clunk+hug

When someone takes forever to ejaculate, making them similar to a snail or slug on how slow they are being. Hence Cumslug : clug

Another word used for semen (or jizz and cum). Many people use this term when the cum is over the top, and very thick. If you were to be ever be clugged on ladies, you know you’ve gave him the time of his life.