Last 3 letters of meddling = ing, first 3 letters of engineer = eng. You can use the last 2,3 or 4 letters of the first word to create the first 2,3 or 4 of the second word.

(is that legal BB) from what you were explaining to me)
theorize
Blowed if I can see how!(is that legal BB) from what you were explaining to me)
theorize