Boosting on the streets can have different meanings depending on the context. Here are some possible definitions based on the search results:

• Stealing and reselling retail items: Boosting can refer to stealing retail items and reselling them on the black market. This is also known as organized shoplifting and can be a highly lucrative, low-risk criminal enterprise. Boosting can involve stealing clothes, shoes, and other items from stores.

• Sneakily stealing: Boosting can also mean to sneakily steal, like shoplifting.

• Helping someone increase their rank: In the context of gaming, boosting can refer to helping someone increase their rank in a game by playing on their behalf or queuing with them.

Its important to note that stealing is illegal and can have serious consequences.