Dreams involving being chased often signify feelings of anxiety or pressure in your waking life. Running down an old street could represent a journey through past experiences or memories. The car chasing you might symbolize a situation or responsibility that feels overwhelming.
The moment your pants fell off can indicate vulnerability or a fear of exposure—perhaps you feel unprepared or insecure about something in your life. Eating your pants could be a symbolic act of trying to regain control over the situation or an attempt to assimilate the feelings of shame or embarrassment.
Overall, this dream may reflect underlying stress and the need to confront and manage your emotions or circumstances. Consider what in your life feels like it's chasing you, and think about how you can address those pressures directly.