Lukaku Share definition Flag Lukaku /lu-ka-ku/ verb past tense: Lukaku'd 1. To lose something under your control; mishandling due to lack of ability and/or concentration. = steve - I really like this girl, everything is going so well! John - Dont Lukaku it mate. Lukaku by lukaku4life December 3, 2018 0 0 Get merch Get the Lukaku mug. Buy Now — $32.95 See more merch