Blu-Tack noun 1verb 1forms 3 noun1 •(UK, Australia) A solid putty-like adhesive, originally blue in colour, used to secure items to walls and other surfaces.It was an April Fool hoax, of course. 31200 had been rigged up with a single lightweight wooden [name] plate (loosely held on by Blu Tack). — 2024 verb1 •(UK, Australia) To fix with Blu-Tack.The power switch wasn't seated properly, and so I blu-tacked it into place. formsBlu-Tacked · Blu-Tacking · Blu-Tacks
