Additive dispenser for varying the types of additives within a washing machine appliance

A washing machine appliance, comprising:

• a cabinet having a top panel, the top panel of the cabinet defining an opening;
• a tub disposed within the cabinet below the top panel, the tub defining a wash chamber;
• a basket rotatably mounted within the tub;
• and
• a fluid additive dispenser comprising
• a housing extending between an open front end and a closed rear end, the housing defining a bottom exhaust opening at the open front end, the housing being mounted below the top panel,
• a dispenser drawer slidably received in the housing above the basket, the dispenser drawer defining a primary compartment and a secondary compartment spaced apart from the primary compartment by a lateral void, the dispenser drawer further defining a primary outlet extending from the primary compartment to direct a primary wash fluid to the basket and a secondary outlet extending from the secondary compartment to direct a secondary wash fluid to the basket,
• a primary cup selectively received on the dispenser drawer within the primary compartment to hold a first wash additive therein, the primary cup defining a vertical opening therethrough to permit the first wash additive to the primary compartment upstream from the primary outlet, and
• a secondary cup selectively received on the dispenser drawer within the secondary compartment to hold a second wash additive therein, the secondary cup defining a vertical opening therethrough to permit the second wash additive to the secondary compartment upstream from the secondary outlet.