English term (edited): blutack

It should be the typo for "Blu Tack".
http://www.google.cn/search?hl=zh-CN&ie=GB2312&q=blu tack&bt...

Blu Tack is a versatile, reusable putty-like pressure-sensitive adhesive. The original version of the product was blue, but many colours are now available. It is based on a formulation consisting of synthetic rubber, polymers, oil, and inorganic fillers.
http://en.wikipedia.org/wiki/Blu_Tack

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Note added at 8 mins (2008-04-11 05:33:04 GMT)
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蓝丁胶产于澳大利亚，1971年以来，“蓝丁”胶就成为办公、学校、幼儿园、家居生活中可重复使用的必需品和必备品。您不仅能用它粘贴纸张、贺卡、照片、地图，还可以固定工艺品、吉祥物、玩具、蜡烛及汽车内香水瓶、纸巾盒、小饰品等，并能清除灰尘、头发及物体表面附着物，清洁电脑键盘等。