I have solo males blacklisted, but I don't have images containing a group of males only blacklisted, because I don't know what to put as tags. What do you guys recommend? So I can add to my blacklist

Images like post #442508

Thanks guys

Try: male -female

This should allow males only when there are females in there.

The group tag is underused, but since you already have solo males blacklisted, I'd suggest something like this:
'male -female -intersex'

That'll filter both solo males, and groups of 'em.

Not an easy one... Try male -female -intersex. This will hide every post tagged with male unless female or intersex is present. You can fine-tune it in whatever way you prefer. By the way, why does feces appear twice on your blacklist?

Edit: I knew I should've refreshed the page before replying...

Add gay and/or -straight, gay will make sure that they interact with each other while -straight will make sure that there are no females present.

Don't forget the rating extension you can add to a line; you can still see solo male images, but only the ones without dick. It's a win win!

As for the situation with group, I guess it's only supposed to be used for 3 or more? Duo is more underused than group, and it's used only for 2. It's more of a problem of bad tagging.

Try these: (for real this time)

male solo -rating:safe
male duo rating:questionable -female
male duo rating:explicit -female
male group rating:questionable -female
male group rating:explicit -female

Thanks guys!