The act of promising to propose before actually proposing for marriage.
Can be used as a noun as well.
I'm going to prompose to Alexandra to let her know it will happen... eventually.

The promposal will be on Friday!
by LoveStruckCanadian February 6, 2013
Get the Prompose mug.
1: characterized by excessive promptness or exaggerated promptness; pretentious: she was a staff member who gloried in arriving exactly on time.
2. Full of prompt replies or phrases; bombastic: a prompt, loud and rushed proclamation.
3. Archaic Characterized by promptness or excessively accurate horologistic displays.
Her Promposity gets us down so much we’ve considered altering her clocks.
by Snowied September 19, 2019
Get the Promposity mug.