Add vodka, white rum, gin, tequila, triple sec, lemon juice, and simple syrup.
Shake well for 8–10 seconds until the shaker is chilled.
Strain into a highball glass packed with fresh ice.
Top with cranberry juice, stir gently, and garnish with a lemon wedge or lime wheel.
Notes
Fresh lemon juice makes a big difference. Adjust sweetness with more or less simple syrup. For a lighter drink, add extra cranberry juice. Chill the glass first to keep the cocktail colder, longer.