"Sissums" is a song performed by sisters Toni Gonzaga and Alex Gonzaga. The term "sissums" is a play on the word "sisters," which is a term of endearment between siblings who are also best friends. The song revolves around the sisters' unwavering love and support for each other. The lyrics describe a strong bond between the sisters, assuring that they always have each other's back no matter what they go through. They emphasize the importance of family and the loyalty they share. They also express their readiness to face any challenges and hardships together, promising not to leave each other behind. The song also addresses the struggles and heartbreak the narrator's sister may have experienced in relationships. They assure her that she is not alone and that they will fight beside her. They encourage her to let go of any negative experiences and people in her life because she deserves better. Throughout the song, the sisters express their commitment to always be there for each other, no matter the circumstances. They offer support, love, and understanding to one another, highlighting the unbreakable bond between sisters. Overall, "Sissums" is a heartwarming and empowering anthem celebrating sisterly love and solidarity. It emphasizes the importance of familial relationships and the strength that can be found in sisterhood.