"SMH" stands for "shaking my head." It is an internet slang acronym commonly used in texting and social media to express disbelief, disappointment, disapproval, frustration, or impatience with something or someone

. The phrase conveys the gesture of physically shaking one's head in response to something perceived as foolish, annoying, or unbelievable. It is often used informally to react to statements or situations that the user finds ridiculous or frustrating, such as:

• "Rebecca and Josh got back together? smh."
• "Cocktails are $35? smh."
• "My teacher made us redo the whole project, SMH."

While "shaking my head" is the primary and widely accepted meaning, some alternate interpretations exist online, such as "so much hate" or "scratching my head," but these are less common and context-dependent

. In summary, "SMH" is a shorthand way to express a virtual headshake indicating disapproval or disbelief in digital communication.