The phrase "put the electric chair" means to execute someone by electrocution. However, there are several synonyms for this phrase, which could be used to avoid using a potentially violent or insensitive term. Some alternatives include "carry out the death penalty," "administer a lethal electric shock," "conduct an electrocution," or simply "execute by electric chair." It's important to be mindful of language and the impact it can have on others, especially when discussing sensitive topics such as the death penalty. Using neutral and respectful language can help promote a more informed and thoughtful discussion on such issues.