With Pompey staring elimination in the competition in the eyes, a Ronan Curtis double snatched victory from the jaws of defeat.
The Republic of Ireland international broke Yakubu’s record of the club’s leading marksman in the 21st century by heading home then firing the travelling fans into ecstacy.
And those in attendance and at home have voiced their opinions online after the full-time whistle.
Ronan Curtis' Portsmouth future spelt out by trusted source well in the know - with advice on where to play Irishman added, too
Former Portsmouth keeper Alex Bass suffers tough night on and off the pitch as he makes Sunderland debut following Fratton Park exit
Portsmouth's Miniesta bidding to live up to big reputation - and those comparisons with ex-Barcelona and Spain star
'We wanted to show him a bit of love' - Portsmouth-based Spurs fans' terrific gesture to ensure Dane Scarlett feels at home on the south-coast
The most expensive estimated League One combined XI - including two Portsmouth, four Barnsley, one Oxford United and two Derby aces
Here’s the best of the bunch as Pompey progress to round-three.
@PFCBOY19: Exeter must hate playing us
@George_WestyPFC: Ronan Curtis. Legend.
@MarkRoser9: 89 mins ...thank god we out this cup !!! 94 mins ..Wembley here we come great comeback tho and a wins a win ! Pleased for the 500 odd fans who went ! Up the blues
@JHancock46: And breathe
@GregAdampfc: Incredible how bad we were 2nd half and still managed to turn it around. Thank god for Curtis!
@Benno_Gregg1995: Were lucky tonight but great character shown by the lads. PUP
@adrian46096287: Never a dull moment with the Mighty Pompey ! PuPPtiD