did·dly 
/ˈdɪdl̟i/ noun
/ˈdɪdl̟i/ noun [noncount] US slang : diddly-squat
▪ Her contributions don't amount to diddly. [=anything] ▪ He helped us a lot, but she didn't do diddly.
▪ Her contributions don't amount to diddly. [=anything] ▪ He helped us a lot, but she didn't do diddly.
