Just saw this phrase in tik tok. Licl back means to get revenge on a guy by sleeping with other men, specifically to hurt a specific guy. The women in the comm it’s talk about sleeping with th guys brothers, friends, etc. but then they’ll go and say having an easier dating pool / hookup options isn’t good. As soon as women want to weaponize sex, all those men dtf are suddenly acceptable to her and the large dating pool is now a good thing. Basically it’s a case of warping arguments to convenience