Pronunciation: [ɹˈə͡ʊl ˈɒn] (IPA) 
The phrase "roll on" typically refers to the action of rolling a cylindrical object, such as a tire or rolling pin, or to express anticipation for something in the future. In terms of spelling, "roll" is pronounced /rəʊl/ with the sound of the letter "o" as in "go," while the word "on" is pronounced /ɒn/ with the sound of the letter "o" as in "lot." When said together, the phrase is pronounced /rəʊl ɒn/.
Roll on is a phrasal verb that has multiple meanings depending on the context.
One of the primary meanings of roll on is to move forward in a rolling motion, typically associated with a circular object. This can refer to a physical movement such as the rotation of a wheel or the progress of a vehicle. For instance, a car's wheels may roll on the road as it moves forward. Furthermore, it can also denote the act of turning over or flipping something along a surface. For instance, a ball can roll on the ground when pushed.
In a figurative sense, roll on can be used to express a desire for time or an event to arrive quickly. It conveys a sense of anticipation or eagerness for something to happen. This usage often connotes impatience or longing for the future. For instance, if someone is eagerly awaiting a vacation, they might say, "Roll on Friday!"
Additionally, roll on can refer to the continuation or progression of something. It signifies the ongoing or uninterrupted nature of a process or event. For example, "Let the good times roll on!" implies a desire for the enjoyable moments to keep coming.
Overall, the term roll on encompasses various meanings, encompassing physical movement, anticipation, and continuity, depending on the context in which it is used.
The phrase "roll on" does not have a clear etymology as it is a relatively modern expression. However, it can be traced back to the verb "roll", which originated from the Old English word "rollian". The word "roll" originally referred to the action of turning or revolving, and later developed various figurative meanings. Over time, the phrase "roll on" came to be used colloquially to express eagerness, anticipation, or a desire for something to happen soon. It is often used as an expression of hope or anticipation for the future.
