An SGL sticker is a sticker that features the letters "SGL" or other designs associated with the SGL brand. The meaning of "SGL" can vary depending on the context of the sticker. For example, one sticker sold on Redbubble features the initials "S.G.L." and is simply a representation of the artists initials. Another sticker sold on Amazon features the phrase "Fuck it Before it Fucks You" and the letters "SGL". SGL can also refer to SuperGreenLab, a company that sells sticker sheets featuring their logo and other designs. Additionally, SGL stickers can feature designs related to specific activities or interests, such as kayaking or the band Machine Head.