Glom onto Definition 1 of 3Pro Tip 1/3Psychological Attachment Implies a strong emotional or intellectual attachment one can't easily let go of. She glommed onto her childhood memories, reliving them often. Pro Tip 2/3Informal Expression Used in casual conversations, not in formal writing or speeches. They all glommed onto the latest slang, using it everywhere. Pro Tip 3/3Enthusiastic Adoption Indicates adopting something with great zeal or eagerness. The community quickly glommed onto the recycling program.