<u><em>Search engine query: </em></u>The results that come up after or while you search something. When using google or a search engine, you will start to type a sentence. While typing that sentence, multiple options will pop up below, just in case any of those might be what you want.
The things that pop up are the things that are most popular regarding what you are searching, or what you have searched or looked up in the past.
The answer is rowdy. Rowdy means noisy or disorderly, which is what the term boisterous is most likely to mean in this sentence. Shouting, cheering, and laughter could all go under the category of rowdy.