Introduction The aim of the study was to examine the intrapersonal, everyday connections between the dimensions of aggression (internalizing and externalizing) that characterize individuals' everyday experiences. The study also aimed to assess the impact of internalizing aggression (anger and hostility) on externalizing aggression (physical aggression and verbal aggression) and vice versa. Method The study included 317 participants from Poland. Participants gave an average of 24.83 responses, resulting in a total of k = 7871 observations. Items from the Buss-Perry Aggression Questionnaire were used to measure the four dimensions of aggression. To examine the daily dynamics of aggression, we used dynamic structural equation modeling (DSEM). Results Externalizing aggression was found to be positively related to internalizing aggression at both the intrapersonal and interpersonal levels. Our study also confirmed our hypothesis that an increase in internalizing aggression one day predicts higher levels of externalizing aggression the next day. Conclusion Our study provided unique insight into assessing the relationship between internalizing aggression (hostility and anger) and externalizing aggression (verbal aggression and physical aggression). Finally, the integration of our research with Wilkowski and Robinson's theory is pointed out.