It`s actually a commonly used german word in order to bespeak the "female breast". Warning: Be advised to not use it in the presence of elders and betters due to its vulgar character.
Wow, Alter, die Braut dort drüben hat hammer Titten!
One who is so whiny that he would likely be seen sucking a nipple such as an infant. Titty-babys often don't get their way in life so they whine about it.
Stefen's whiny voice message gave the impression that he was a titty-baby.