Just out of pure unadulterated curiosity I was wonder what other's safe words are, or if you have another way to tell your partner to stop (drop toy like OLP).
I have only used the color system and that was about 100 years ago.
I no longer have a safeword. If I don't have my monkey safetoy, then a series of urgent movements does the trick, or if my mouth is free, then I just say that I'm not okay, in a very urgent tone of voice.
But even with all this, I'm lucky in that my master will repeatedly ask during a session if I am okay
We decided to use the color system, mostly because in the heat of the moment, if panic hits, I don't want to be fumbling to remember a safe word. Plus if I am just not ok with the current activity, then I say yellow and we discuss what's going on. If everything is to stop immediately and without question, then I call red. Considering getting a safe toy too though since I will be in need of a good gag due to having roommates