The term 'TIGHT' as a drum refers to a specific type of drumming technique. It is a style of playing that emphasizes precision and accuracy, with the drummer playing each beat with a consistent and controlled sound. This technique is often used in genres such as jazz, funk, and rock. It is also used in some forms of Latin music, such as salsa and merengue. The term 'TIGHT' is often used to describe a drummer who is able to play with a high level of accuracy and consistency.