SPG can refer to different things depending on the context. Here are some possible meanings:

• Sarong Party Girl: In Singapore and Peninsular Malaysia, an SPG is a woman of Chinese ethnicity who exclusively dates or socializes with men of European origin.

• Self-Propelled Gun: A type of artillery that is mounted on a vehicle or tank chassis and can move under its own power.

• Submersible Pressure Gauge: A device used in scuba diving to measure the pressure of the surrounding water.

• Sync Pulse Generator: A type of video signal generator used in broadcasting and video production.

• Salt, Pepper, and Garlic: An acronym used in cooking recipes to indicate the use of these three ingredients.

Its important to note that the term "SPG" can have different connotations depending on the context. For example, in Singapore, the term "Sarong Party Girl" can be considered derogatory.