What does 一个泡子 mean?
Finding the implicit meaning can be sometimes be a tough chore. Instead of just Google Translate you should also look for a Chinese-English dictionary for your computer or tablet (search this website questions/answers for dictionary resources or see this resource if you have a Mac OSX). I will say that the context is also not clear to me on the question you've asked because the phrase you've provided seems to have no relative common name (i.e. if the phrase you've presented was supposed to reference your name, the characters do not appear to make sense in that context).

I asked a native speaker and she points out that the typical pattern seen is "一个泡沫" (Yīgè pàomò, 一個泡沫) meaning a bubble as in the bubble a child blows or it can be used in the phrase 经济泡沫 (Jīngjì pàomò, 經濟泡沫) meaning an economic bubble. There are many other resources that show up in answers here on the website, which can help you with individual interpretation of characters but to get the proper context, one should always seek out a native language speaker.