Definition of sugar daddy for English Language Learners : a rich, older man who gives money, gifts, etc., to someone (such as a young woman) in exchange for sex, friendship, etc. Learn More about sugar daddy
Noise is defined as a sound, especially a loud one. An example of a noise is the sound of fireworks. To noise is defined as to tell rumors or spread information around. An example of to noise is to gossip around town. noise.
Semantic noise is a difference the semantics being used in the code and the concept it represents in the problem space. In other words, it is an indication that the code doesn't mean what a naive programmer might expect.