The act of dipping your index finger in mustard and fingering someone right after without them knowing
Bro! Me and my girl were getting freaky last night. As we were fucking i hit her with the Mustard Finger Surprise.
by Poodery January 03, 2024
The act of dipping you index finger into some mustard then proceeding to finger blast someone while yelling "SURPRISE" from behind
by Poodery February 16, 2025