hit a brick wall

to encounter an insurmountable obstacle

The producers hit a brick wall with there asinine protests against reasonable regulations.

by The Return of Light Joker September 2, 2010

Like a milk float hitting a brick wall

A particularly powerful ejaculation.

"Philip had been away for three weeks shooting lions in the Serengeti, so when he smashed the life out of me upon his return it was like a milk float hitting a brick wall"

"Good heavens, Ma'am"

by Bearded Cridders November 11, 2017