The term 'pushing in' refers to the action of intruding or encroaching on someone's personal space or time. It can be considered rude or inappropriate behavior, especially in a crowded or confined space. To avoid using this phrase, there are numerous synonyms one can use such as barging, shoving, squeezing, infiltrating, or elbowing. Other phrases that can be used are 'cutting in line' or 'jumping the queue' because they refer to the act of bypassing others in a line or queue. It is essential to be respectful of other people's personal space and not be intrusive, especially in our everyday interactions.