To 'act up' refers to the collective and often disruptive actions taken by individuals or groups to assert their rights, raise awareness, or challenge injustices, particularly within the LGBTQ+ community. This term embodies a spirit of resistance and activism, highlighting the ways marginalized communities express their frustrations and demands for recognition and equality. In many cases, 'acting up' serves as a form of protest against societal norms, discrimination, and oppression faced by LGBTQ+ individuals.