These are NOT Charlie Brown's "Great Pumpkins" -- Customs agents uncovered a huge amount of meth tucked inside a bundle of everyone's fave Halloween gourds.
U.S. Customs and Border Protection revealed their big find in a statement Wednesday ... noting its officers have seen "just about everything and this Tuesday was no exception" -- saying they discovered more than $402K in liquid methamphetamine inside the pumpkins.
The 4 winter squashes, found at Eagle Pass Port of Entry in Texas, held a total of 44 pounds of the drug which was packed into 136 different condoms.
The officers seized the meth and the car that was carrying the pumpkins ... and the driver was turned over to Maverick County Sherriff's Office for further investigation.
Carve carefully out there!! Not all jack-o-lanterns are created equally.