"Drew a blank" is an idiomatic expression meaning to be unable to recall or think of something. The word "drew" is spelled as /dru/, with the "ew" being pronounced as /u/. "Blank" is spelled as /blæŋk/, with the "a" being pronounced as /æ/ and the "n" followed by silent "k". This phrase is commonly used in everyday conversation and in writing to express a moment of forgetfulness or inability to recollect information.