The phrase "getting it up" is commonly used to refer to achieving and maintaining an erection, but there are many other synonymous phrases that can be used to describe this experience. Some popular options include "getting hard," "getting stiff," or "getting aroused." More slang terms for this experience might include "getting a woody," "getting a boner," or "pitching a tent." Each of these phrases can convey slightly different connotations depending on the context, so it's important to choose the right one for the situation at hand. Regardless of the terminology used, experiencing an erection is a natural and healthy aspect of male sexuality.